#
%
(slope percent)
Slope (grade) units, Circular measure
%
(percent)
Percentages and Parts, Franctions and Percent
‰
(slope permille)
Slope (grade) units, Circular measure
‰
(permille)
Percentages and Parts, Franctions and Percent
′
(minute)
Common Units, Circular measure
″
(second)
Common Units, Circular measure
℈
(scruple)
Apothecaries, Mass and weight
℔, ″
(pound)
Apothecaries, Mass and weight
℥
(ounce)
Apothecaries, Mass and weight
1
(unit, point)
Quantity Units, Franctions and Percent
1/10
(one tenth or .1)
Fractions, Franctions and Percent
1/16
(one sixteenth or .0625)
Fractions, Franctions and Percent
1/2
(half or .5)
Fractions, Franctions and Percent
1/3
(one third or .(3))
Fractions, Franctions and Percent
1/32
(one thirty-second or .03125)
Fractions, Franctions and Percent
1/4
(quart, one forth or .25)
Fractions, Franctions and Percent
1/5
(tithe, one fifth or .2)
Fractions, Franctions and Percent
1/6
(one sixth or .1(6))
Fractions, Franctions and Percent
1/7
(one seventh or .142857)
Fractions, Franctions and Percent
1/8
(one eights or .125)
Fractions, Franctions and Percent
1/9
(one ninth or .(1))
Fractions, Franctions and Percent
Metric, Distance and Length
°C
(degrees Celsius)
Temperature increment conversion, Temperature increment
°C
(degrees Celsius)
Temperature scale conversion, Temperature
°D
(degrees Delisle)
Historical temperature increment conversion, Temperature increment
°D
(degrees Delisle)
Historical temperature scales, Temperature
°F
(degrees Fahrenheit)
Temperature increment conversion, Temperature increment
°F
(degrees Fahrenheit)
Temperature scale conversion, Temperature
ƒ℥
(fluid ounce)
Apothecaries, Capacity and volume
ƒʒ
(fluid dram)
Apothecaries, Capacity and volume
°N
(degrees Newton)
Historical temperature increment conversion, Temperature increment
°N
(degrees Newton)
Historical temperature scales, Temperature
°R
(degrees Rankine)
Historical temperature increment conversion, Temperature increment
°R
(degrees Rankine)
Historical temperature scales, Temperature
°Re
(degrees Reaumur)
Temperature increment conversion, Temperature increment
°Re
(degrees Reaumur)
Temperature scale conversion, Temperature
°Rø
(degrees Rømer)
Historical temperature increment conversion, Temperature increment
°Rø
(degrees Rømer)
Historical temperature scales, Temperature
ʒ
(dram (drachm))
Apothecaries, Mass and weight
Θ
(Planck temperature)
Temperature increment conversion, Temperature increment
Θ
(Planck temperature)
Temperature scale conversion, Temperature
µCi
(microcurie)
Other units, Radioactivity
µl
(microliter)
Metric, Capacity and volume
μm
(Diameter in micrometres)
Wire diameter, Wire and Needle Gauge
μm²
(Section area in square micrometres)
Wire section area, Wire and Needle Gauge
µ, mc
(micro)
Metric Prefixes, Franctions and Percent
Ancient Greek, Historical Lengths
A
a
(atto)
Metric Prefixes, Franctions and Percent
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Free Fall Acceleration (Solar System), Acceleration
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
British (Imperial) And U.S. System, Historical Units of Area
U.S. Liquid Measure, Capacity and volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
Ancient Roman, Historical Lengths
Old Spanish, Historical weights
British (Imperial) Nautical Measure, Distance and Length
British (Imperial) Nautical Measure, Distance and Length
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
United Kingdom and Ireland Shoe Size, Shoe Size Conversion
Afghan Afghani
(AFN)
Asian Currencies, Currency
Ancient Greek, Historical Units of Area
Ancient Greek, Historical Lengths
Albanian Lek
(ALL)
European Currencies, Currency
Algerian Dinar
(DZD)
African Curriencies, Currency
Old Portuguese Liquid Measure, Historical Units of Capacity
Old Swedish, Historical Lengths
Old Portuguese Dry Measure, Historical Units of Capacity
Ancient Egypt, Historical Lengths
Music Wire Gauges, Wire and Needle Gauge
Wire Gauges, Wire and Needle Gauge
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
amu
(atomic mass unit)
Metric, Mass and weight
Angolan Kwanza
(AOA)
African Curriencies, Currency
Artillery, Circular measure
Artillery, Circular measure
Astronomical, Time
Astronomical, Time
apostilb
(asb)
Other units, Illuminance
Old Spanish, Historical Units of Area
Argentine Peso
(ARS)
South American Currencies, Currency
Armenian Dram
(AMD)
Asian Currencies, Currency
Ancient Greek, Historical Units of Area
Old French, Historical Units of Area
Old French, Historical Lengths
Old Portuguese, Historical weights
Old Spanish Liquid Measure, Historical Units of Capacity
Old Portuguese, Historical weights
Old Spanish, Historical weights
Old Russian, Historical Lengths
Aruban Florin
(AWG)
Currencies of the Caribbean, Currency
asb
(apostilb)
Other units, Illuminance
Ring Sizes in Japan, China, Korea, Hong Kong, Taiwan, Singapore, Ring size
Asian Shoe Size, Shoe Size Conversion
astronomical unit
(au)
Astronomical, Distance and Length
Thai units, Mass and weight
atm
(physical atmosphere)
Atmosphere, Stress and Pressure
atomic mass unit
(amu)
Metric, Mass and weight
Atomic Physics Units, Force
atto
(a)
Metric Prefixes, Franctions and Percent
au
(astronomical unit)
Astronomical, Distance and Length
Australia and New Zealand Shoe Size, Shoe Size Conversion
Australian Dollar, $
(AUD)
Major World Currencies, Currency
Australia and New Zealand Shoe Size, Shoe Size Conversion
Australia and New Zealand Shoe Size, Shoe Size Conversion
Azerbaijani Manat
(AZN)
Asian Currencies, Currency
Old Spanish Liquid Measure, Historical Units of Capacity
B
Bahamian Dollar
(BSD)
Currencies of the Caribbean, Currency
Bahraini Dinar
(BHD)
Middle East Currencies, Currency
Thai units, Mass and weight
Thai units, Mass and weight
Quantity Units, Franctions and Percent
Bangladeshi Taka
(BDT)
Asian Currencies, Currency
Metric, Stress and Pressure
Barbadian Dollar
(BBD)
Currencies of the Caribbean, Currency
British Imperial Measure before 1963, Distance and Length
English brewery cask units, Capacity and volume
English wine cask units, Capacity and volume
British Imperial Liquid And Dry, Capacity and volume
U.S. Dry Measure, Capacity and volume
U.S. Measure, Historical Units of Capacity
U.S. Measure, Historical Units of Capacity
barrel of oil equivalent
(BOE)
Oil Energy Equivalent, Energy and Work
U.S. Liquid Measure, Capacity and volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
Biblical and Talmudic Liquid Measure (Old Testament), Historical Units of Capacity
BBOE
(billion barrel of oil equivalent)
Oil Energy Equivalent, Energy and Work
becquerel
(Bq)
SI radioactivity units, Radioactivity
Biblical, Historical weights
Belarusian Ruble
(BYN)
European Currencies, Currency
Belize Dollar
(BZD)
Central American Currencies, Currency
Ancient Greek, Historical Units of Area
Old Russian, Historical weights
Bermudan Dollar
(BMD)
North American Currencies, Currency
Ancient Roman, Historical weights
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
Bhutanese Ngultrum
(BTN)
Asian Currencies, Currency
Thai units, Mass and weight
Oil Energy Equivalent, Energy and Work
Common Radix Numerals, Roman numbers, Hex, Octal and more
Old Swedish, Historical weights
Data Storage and Transmission, Computer storage
bit per second
(bps)
Basic Units of Data Transfer Rate, Data transfer rate
Other units, Illuminance
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
boardfoot, board-foot
(fbmm, bdft, bf)
Lumber measure, Capacity and volume
BOE
(barrel of oil equivalent)
Oil Energy Equivalent, Energy and Work
Bolivian Boliviano
(BOB)
South American Currencies, Currency
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
European Currencies, Currency
Old Spanish Liquid Measure, Historical Units of Capacity
Botswanan Pula
(BWP)
African Curriencies, Currency
bps
(bit per second)
Basic Units of Data Transfer Rate, Data transfer rate
Bq
(becquerel)
SI radioactivity units, Radioactivity
Old Portuguese, Historical Lengths
Old Portuguese, Historical Units of Area
Old Spanish, Historical Lengths
Brazilian Real
(BRL)
South American Currencies, Currency
Brazilian Shoe Size, Shoe Size Conversion
Apothecaries, Capacity and volume
Other units, Illuminance
Avoirdupois (U.S. / British), Mass and weight
British system, Fuel economy
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
U.S. and British Imperial, Flow rate by volume
Major World Currencies, Currency
British Thermal Unit
(BTU)
British and American, Energy and Work
British Thermal Unit per hour
(BTU/hr)
British and American, Power
British Thermal Unit per minute
(BTU/min)
British and American, Power
British Thermal Unit per second
(BTU/s)
British and American, Power
Brunei Dollar
(BND)
Asian Currencies, Currency
B/s
(byte per second)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
B/s
(byte per second)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
BTU
(British Thermal Unit)
British and American, Energy and Work
bu
(bushel)
U.S. Measure, Historical Units of Capacity
bu
(bushel)
British Imperial Liquid And Dry, Capacity and volume
bu
(bushel)
U.S. Dry Measure, Capacity and volume
Bulgarian Lev
(BGN)
European Currencies, Currency
Burundian Franc
(BIF)
African Curriencies, Currency
bushel
(bu)
U.S. Measure, Historical Units of Capacity
bushel
(bu)
British Imperial Liquid And Dry, Capacity and volume
bushel
(bu)
U.S. Dry Measure, Capacity and volume
English wine cask units, Capacity and volume
British Imperial Measure before 1963, Distance and Length
Japanese, Distance and Length
Chinese units of 1915, Distance and Length
Data Storage and Transmission, Computer storage
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
byte per second
(B/s)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
byte per second
(B/s)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
C
c
(centi)
Metric Prefixes, Franctions and Percent
Old Spanish, Historical Units of Area
cable length
(cbl)
International Nautical Measure, Distance and Length
Computer Connection Speed, Data transfer rate
Old Spanish Dry Measure, Historical Units of Capacity
cal
(calorie)
Common Units, Energy and Work
Common units, Time
British Imperial Measure before 1963, Distance and Length
calorie
(cal)
Common Units, Energy and Work
Common Units, Power
Common Units, Power
Common Units, Power
Cambodian Riel
(KHR)
Asian Currencies, Currency
Old Portuguese Liquid Measure, Historical Units of Capacity
Canadian Dollar, $
(CAD)
Major World Currencies, Currency
Hong Kong, Mass and weight
Hong Kong, Mass and weight
Indian units (Akbar system), Mass and weight
Old Spanish Liquid Measure, Historical Units of Capacity
Old Portuguese Liquid Measure, Historical Units of Capacity
Cape Verdean Escudo
(CVE)
African Curriencies, Currency
Troy, Mass and weight
carat
(ct)
Metric, Mass and weight
Hong Kong, Mass and weight
Cayman Islands Dollar
(KYD)
Currencies of the Caribbean, Currency
cbl
(cable length)
International Nautical Measure, Distance and Length
cc
(cubic centimeter)
Metric, Historical Units of Capacity
cc
(cubic centimeter)
Metric, Capacity and volume
ccf
(centum cubic feet)
British and U.S. derivatives of length units, Capacity and volume
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Hong Kong units, Distance and Length
Old Spanish, Historical Units of Area
Old Spanish Dry Measure, Historical Units of Capacity
Celsius heat unit
(CHU)
Common Units, Energy and Work
centi
(c)
Metric Prefixes, Franctions and Percent
Metric, Mass and weight
centiliter
(cl)
Metric, Capacity and volume
centimeter
(cm)
Metric, Historical Lengths
centimeter
(cm)
Metric, Distance and Length
Water (at 39.2°F, 4°C), Stress and Pressure
centum cubic feet
(ccf)
British and U.S. derivatives of length units, Capacity and volume
Ancient Roman, Historical Units of Area
Old Russian Dry Measure, Historical Units of Capacity
CFA Franc BCEAO
(XOF)
African Curriencies, Currency
CFA Franc BEAC
(XAF)
African Curriencies, Currency
ch
(Ramsden's (engineers') chain)
US Surveyors' Measure, Distance and Length
ch
(Gunter's (surveyors') chain)
US Surveyors' Measure, Distance and Length
ch
(Gurley's chain)
US Surveyors' Measure, Distance and Length
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Thai units, Mass and weight
Old Russian Liquid Measure, Historical Units of Capacity
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Old Russian Liquid Measure, Historical Units of Capacity
U.S. and Canada Customary Shoe Size, Shoe Size Conversion
United Kingdom and Ireland Shoe Size, Shoe Size Conversion
Chilean Peso
(CLP)
South American Currencies, Currency
South American Currencies, Currency
Chinese Yuan, ¥
(CNY)
Major World Currencies, Currency
Asian Currencies, Currency
Indian units (Akbar system), Mass and weight
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Japanese, Distance and Length
Japanese, Area
CHU
(Celsius heat unit)
Common Units, Energy and Work
Ci
(curie)
Other units, Radioactivity
Typographical (Europe - Didot system), Distance and Length
circle
(circumference)
Common Units, Circular measure
Units for Measuring Wire Gauges, Area
circular mil
(cmil)
Units for Measuring Wire Gauges, Area
circumference
(circle)
Common Units, Circular measure
Inner Diameter and Circumference of a Ring, Ring size
Inner Diameter and Circumference of a Ring, Ring size
cl
(centiliter)
Metric, Capacity and volume
cm
(centimeter)
Metric, Historical Lengths
cm
(centimeter)
Metric, Distance and Length
cm²
(square centimeter)
Metric, Historical Units of Area
cm³/day
(cubic centimeter per day)
Metric, Flow rate by volume
cm³/hour
(cubic centimeter per hour)
Metric, Flow rate by volume
cm³/min
(cubic centimeter per minute)
Metric, Flow rate by volume
cm³/s
(cubic centimeter per second)
Metric, Flow rate by volume
cm³/year
(cubic centimeter per year)
Metric, Flow rate by volume
Computer Connection Speed, Data transfer rate
Old Spanish, Historical Lengths
Old Spanish, Historical Lengths
Colombian Peso
(COP)
South American Currencies, Currency
Comorian Franc
(KMF)
African Curriencies, Currency
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Congolese Franc
(CDF)
African Curriencies, Currency
Old Spanish Liquid Measure, Historical Units of Capacity
Lumber measure, Capacity and volume
Old Spanish Liquid Measure, Historical Units of Capacity
Costa Rican Colón
(CRC)
Central American Currencies, Currency
Old Spanish, Historical Lengths
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
coulomb per kilogram
(C/kg)
Exposure to ionizing radiation, Radiation
Old Portuguese, Historical Lengths
Croatian Kuna
(HRK)
European Currencies, Currency
ct
(carat)
Metric, Mass and weight
cu
(cubit)
British Imperial Measure before 1963, Distance and Length
Historical Units Still In Use Today, Area
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Historical Units Still In Use Today, Area
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Historical Units Still In Use Today, Area
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Historical Units Still In Use Today, Area
Spanish Customary Units Still In Use Today, Distance and Length
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Spanish Customary Units Still In Use Today, Distance and Length
Old Spanish, Historical weights
Old Spanish Dry Measure, Historical Units of Capacity
Old Spanish, Historical Units of Area
Old Spanish Liquid Measure, Historical Units of Capacity
Old Spanish Dry Measure, Historical Units of Capacity
Cuban Convertible Peso
(CUC)
Currencies of the Caribbean, Currency
Cuban Peso
(CUP)
Currencies of the Caribbean, Currency
cubic centimeter
(cc)
Metric, Historical Units of Capacity
cubic centimeter
(cc)
Metric, Capacity and volume
Common Units, Energy and Work
cubic centimeter per day
(cm³/day)
Metric, Flow rate by volume
cubic centimeter per hour
(cm³/hour)
Metric, Flow rate by volume
cubic centimeter per minute
(cm³/min)
Metric, Flow rate by volume
cubic centimeter per second
(cm³/s)
Metric, Flow rate by volume
cubic centimeter per year
(cm³/year)
Metric, Flow rate by volume
cubic decimeter
(dm³)
Metric, Capacity and volume
cubic foot
(ft³)
British and U.S. derivatives of length units, Capacity and volume
British and American, Energy and Work
cubic foot per day
(ft³/day)
U.S. and British Imperial, Flow rate by volume
cubic foot per hour
(ft³/hour)
U.S. and British Imperial, Flow rate by volume
cubic foot per minute
(ft³/min)
U.S. and British Imperial, Flow rate by volume
cubic foot per second
(ft³/s)
U.S. and British Imperial, Flow rate by volume
cubic foot per year
(ft³/year)
U.S. and British Imperial, Flow rate by volume
cubic inch
(in³)
British and U.S. derivatives of length units, Capacity and volume
cubic inch per day
(in³/day)
U.S. and British Imperial, Flow rate by volume
cubic inch per hour
(in³/hour)
U.S. and British Imperial, Flow rate by volume
cubic inch per minute
(in³/min)
U.S. and British Imperial, Flow rate by volume
cubic inch per second
(in³/s)
U.S. and British Imperial, Flow rate by volume
cubic inch per year
(in³/year)
U.S. and British Imperial, Flow rate by volume
cubic kilometer
(km³)
Metric, Capacity and volume
Astronomical, Capacity and volume
Astronomical, Capacity and volume
Astronomical, Capacity and volume
cubic meter
(m³)
Metric, Historical Units of Capacity
cubic meter
(m³)
Metric, Capacity and volume
cubic meter per day
(m³/day)
Metric, Flow rate by volume
cubic meter per hour
(m³/hour)
Metric, Flow rate by volume
cubic meter per minute
(m³/min)
Metric, Flow rate by volume
cubic meter per second
(m³/s)
Metric, Flow rate by volume
cubic meter per year
(m³/year)
Metric, Flow rate by volume
cubic mile
(mi³)
British and U.S. derivatives of length units, Capacity and volume
cubic millimeter
(mm³)
Metric, Historical Units of Capacity
cubic millimeter
(mm³)
Metric, Capacity and volume
cubic parsec
(pc³)
Astronomical, Capacity and volume
Lumber measure, Capacity and volume
cubic yard
(yd³)
British and U.S. derivatives of length units, Capacity and volume
British and American, Energy and Work
Biblical, Historical Lengths
cubit
(cu)
British Imperial Measure before 1963, Distance and Length
Ancient Roman, Historical Lengths
Old Spanish, Historical Lengths
Old Spanish, Historical Units of Area
Old Spanish, Historical Lengths
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
Chinese units of 1930, Capacity and volume
Cooking (International), Capacity and volume
Cooking (U.S.), Capacity and volume
curie
(Ci)
Other units, Radioactivity
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Czech Republic Koruna
(CZK)
European Currencies, Currency
D
d
(deci)
Metric Prefixes, Franctions and Percent
da
(deka)
Metric Prefixes, Franctions and Percent
Ancient Greek, Historical Lengths
Danish Krone
(DKK)
European Currencies, Currency
Chinese units since 1959, Mass and weight
Chinese units of 1930, Capacity and volume
Chinese units between 1930 and 1959, Mass and weight
Chinese units of 1915, Capacity and volume
days, hours, minutes and seconds
(Dd HH:MM:SS)
Common units, Time
Dd HH:MM:SS
(days, hours, minutes and seconds)
Common units, Time
Quantity Units, Franctions and Percent
Metric, Capacity and volume
decanewton
(dN)
International System (SI), Force
Ancient Greek, Historical Units of Area
Ancient Roman, Historical Lengths
deci
(d)
Metric Prefixes, Franctions and Percent
deciliter
(dl)
Metric, Capacity and volume
decimeter
(dm)
Metric, Distance and Length
deg
(degree)
Common Units, Circular measure
degree
(deg)
Common Units, Circular measure
Degree, Angular velocity
Degree, Angular velocity
Degree, Angular velocity
degrees Celsius
(°C)
Temperature increment conversion, Temperature increment
degrees Celsius
(°C)
Temperature scale conversion, Temperature
degrees Delisle
(°D)
Historical temperature increment conversion, Temperature increment
degrees Delisle
(°D)
Historical temperature scales, Temperature
degrees Fahrenheit
(°F)
Temperature increment conversion, Temperature increment
degrees Fahrenheit
(°F)
Temperature scale conversion, Temperature
degrees, minutes, seconds
(d°m′s″)
Common Units, Circular measure
degrees Newton
(°N)
Historical temperature increment conversion, Temperature increment
degrees Newton
(°N)
Historical temperature scales, Temperature
degrees Rankine
(°R)
Historical temperature increment conversion, Temperature increment
degrees Rankine
(°R)
Historical temperature scales, Temperature
degrees Reaumur
(°Re)
Temperature increment conversion, Temperature increment
degrees Reaumur
(°Re)
Temperature scale conversion, Temperature
degrees Rømer
(°Rø)
Historical temperature increment conversion, Temperature increment
degrees Rømer
(°Rø)
Historical temperature scales, Temperature
deka
(da)
Metric Prefixes, Franctions and Percent
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Ancient Greek, Historical Lengths
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Densities of various materials, Density
Radiation dose examples, Radiation
Old Austrian, Historical weights
Ancient Egypt, Historical Lengths
Apothecaries, Capacity and volume
Cooking (Australian), Capacity and volume
Old Russian, Historical Units of Area
Old Russian, Historical Units of Area
Ancient Roman, Historical weights
Ancient Roman, Historical weights
Indian units (Akbar system), Mass and weight
Diameter in inches
(in)
Inner Diameter and Circumference of a Ring, Ring size
Diameter in inches
(in)
Wire diameter, Wire and Needle Gauge
Wire diameter, Wire and Needle Gauge
Inner Diameter and Circumference of a Ring, Ring size
Wire diameter, Wire and Needle Gauge
Wire diameter, Wire and Needle Gauge
Ancient Greek, Historical Lengths
Ancient Greek, Historical Lengths
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
British Imperial Measure before 1963, Distance and Length
Ancient Roman, Historical Lengths
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Optical, Distance and Length
Ancient Greek, Historical Lengths
Other units, Radioactivity
Other units, Radioactivity
Ancient Egypt, Historical Lengths
Ancient Egypt, Historical Lengths
Djiboutian Franc
(DJF)
African Curriencies, Currency
dl
(deciliter)
Metric, Capacity and volume
dm
(decimeter)
Metric, Distance and Length
dm³
(cubic decimeter)
Metric, Capacity and volume
d°m′s″
(degrees, minutes, seconds)
Common Units, Circular measure
Ancient Greek, Historical Units of Area
Ancient Roman, Historical weights
Troy, Mass and weight
Ancient Greek, Historical Lengths
Old Russian, Historical weights
Dominican Peso
(DOP)
Currencies of the Caribbean, Currency
Historical Units Still In Use Today, Area
Old German (Prussian), Historical weights
Ancient Greek, Historical Lengths
Chinese units of 1930, Capacity and volume
Chinese units of 1915, Capacity and volume
Quantity Units, Franctions and Percent
dpm
(disintegrations per minute)
Other units, Radioactivity
dr
(dram)
Avoirdupois (U.S. / British), Mass and weight
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Astronomical, Time
Astronomical, Time
dram
(dr)
Avoirdupois (U.S. / British), Mass and weight
dram (drachm)
(ʒ)
Apothecaries, Mass and weight
Computer Connection Speed, Data transfer rate
Ancient Roman, Historical weights
Number of Performers, Franctions and Percent
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Other Radix Numerals, Roman numbers, Hex, Octal and more
dwt
(pennyweight)
Troy, Mass and weight
Metric, Torque
Metric, Torque
Historical Units Still In Use Today, Area
E
E
(exa)
Metric Prefixes, Franctions and Percent
Computer Connection Speed, Data transfer rate
East Caribbean Dollar
(XCD)
Currencies of the Caribbean, Currency
Eb [EiB]
(exabyte [exbibyte])
Data Storage and Transmission, Computer storage
Ebit [Eibit]
(exabit [exbibit])
Data Storage and Transmission, Computer storage
Computer Connection Speed, Data transfer rate
Egyptian Pound
(EGP)
African Curriencies, Currency
electronvolt
(eV)
Common Units, Energy and Work
Old Russian, Historical Lengths
British Imperial Measure before 1963, Distance and Length
Old German (Prussian), Historical Lengths
Music Wire Gauges, Wire and Needle Gauge
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
Common Units, Energy and Work
Common Units, Power
Eritrean Nakfa
(ERN)
African Curriencies, Currency
Old Portuguese, Historical weights
Old Spanish, Historical Lengths
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Ethiopian Birr
(ETB)
African Curriencies, Currency
Biblical, Historical Lengths
European Standard Sizes (ISO 8653:2016, most European countries), Ring size
Continental Europe and Middle East Shoe Size, Shoe Size Conversion
eV
(electronvolt)
Common Units, Energy and Work
exa
(E)
Metric Prefixes, Franctions and Percent
exabit [exbibit]
(Ebit [Eibit])
Data Storage and Transmission, Computer storage
exabyte [exbibyte]
(Eb [EiB])
Data Storage and Transmission, Computer storage
F
f
(femto)
Metric Prefixes, Franctions and Percent
Falkland Islands Pound
(FKP)
African Curriencies, Currency
Old Swedish, Historical Lengths
Old Spanish Dry Measure, Historical Units of Capacity
Old Spanish, Historical Units of Area
Old Spanish, Historical weights
Old Spanish, Historical weights
Old Portuguese Dry Measure, Historical Units of Capacity
fang chi (方尺)
(chi²)
Chinese units of 1915, Area
fang chi (方尺)
(chi²)
Chinese units of 1930, Area
fang cun (方寸)
(cun²)
Chinese units of 1915, Area
fang cun (方寸)
(cun²)
Chinese units of 1930, Area
fang zhang (方丈)
(zhang²)
Chinese units of 1915, Area
fang zhang (方丈)
(zhang²)
Chinese units of 1930, Area
Hong Kong units, Distance and Length
fath
(US fathom)
US Nautical Measure, Distance and Length
fath
(fathom)
International Nautical Measure, Distance and Length
fathom
(fath)
International Nautical Measure, Distance and Length
fbmm, bdft, bf
(boardfoot, board-foot)
Lumber measure, Capacity and volume
fc
(foot-candle)
Photography units, Illuminance
Historical Units Still In Use Today, Area
feet and inches
(x'y")
The American System (US Customary Units) and British Imperial Measures, Distance and Length
U.S. and Canada Customary Shoe Size, Shoe Size Conversion
U.S. and Canada Customary Shoe Size, Shoe Size Conversion
femto
(f)
Metric Prefixes, Franctions and Percent
femtosecond
(fs)
Common units, Time
Chinese units of 1915, Distance and Length
Chinese units of 1915 before 1930, Mass and weight
Chinese units of 1930, Distance and Length
Chinese units between 1930 and 1959, Mass and weight
Chinese units since 1959, Mass and weight
fg
(frigoria)
Common Units, Energy and Work
Fijian Dollar
(FJD)
Currencies of Australia and Oceania, Currency
Decimal numbers, Roman numbers, Hex, Octal and more
British Imperial Measure before 1963, Distance and Length
English brewery cask units, Capacity and volume
Old Swedish, Historical Lengths
fl dr
(fluid drachm)
British Imperial Liquid And Dry, Capacity and volume
fl dr
(fluid dram)
U.S. Liquid Measure, Capacity and volume
Quantity Units, Franctions and Percent
fl oz
(fluid ounce)
U.S. Liquid Measure, Capacity and volume
fluid drachm
(fl dr)
British Imperial Liquid And Dry, Capacity and volume
fluid dram
(ƒʒ)
Apothecaries, Capacity and volume
fluid dram
(fl dr)
U.S. Liquid Measure, Capacity and volume
fluid ounce
(oz)
U.S. Measure, Historical Units of Capacity
fluid ounce
(oz)
British Imperial Liquid And Dry, Capacity and volume
fluid ounce
(ƒ℥)
Apothecaries, Capacity and volume
fluid ounce
(fl oz)
U.S. Liquid Measure, Capacity and volume
British Imperial Liquid And Dry, Capacity and volume
Old Russian, Historical Lengths
foot
(ft)
The American System of Measures (US Customary Units), Historical Lengths
foot
(ft)
British Imperial Measure before 1963, Distance and Length
foot
(ft)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
foot-candle
(fc)
Photography units, Illuminance
Other units, Illuminance
Foot and Last lengths, Shoe Size Conversion
Foot and Last lengths, Shoe Size Conversion
Foot and Last lengths, Shoe Size Conversion
Water (at 39.2°F, 4°C), Stress and Pressure
British (Imperial) And U.S. System, Speed
British (Imperial) And U.S. System, Speed
British (Imperial) And U.S. System, Speed
foot per second squared
(ft/s²)
British (Imperial) And U.S. System, Acceleration
British (Imperial) And U.S. System, Speed
foot-pound
(ft*lbs)
British and American, Energy and Work
foot pound-force per second
(ft*lbf/s)
British and American, Power
Old Swedish, Historical Lengths
Medical Needle and Catheter Gauges, Wire and Needle Gauge
Currencies of Australia and Oceania, Currency
frigoria
(fg)
Common Units, Energy and Work
frigoria per hour
(fg/h)
Common Units, Power
ft
(foot)
The American System of Measures (US Customary Units), Historical Lengths
ft
(Storage length in feet)
CNC Memory Capacity, Computer storage
ft
(Gunter's (surveyors') foot)
US Surveyors' Measure, Distance and Length
ft
(foot)
British Imperial Measure before 1963, Distance and Length
ft
(foot)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
ft²
(square foot)
British (Imperial) And U.S. System, Historical Units of Area
ft³
(cubic foot)
British and U.S. derivatives of length units, Capacity and volume
ft³/day
(cubic foot per day)
U.S. and British Imperial, Flow rate by volume
ft³/hour
(cubic foot per hour)
U.S. and British Imperial, Flow rate by volume
ft³/min
(cubic foot per minute)
U.S. and British Imperial, Flow rate by volume
ft³/s
(cubic foot per second)
U.S. and British Imperial, Flow rate by volume
ft³/year
(cubic foot per year)
U.S. and British Imperial, Flow rate by volume
ft*lbs
(foot-pound)
British and American, Energy and Work
ft/s²
(foot per second squared)
British (Imperial) And U.S. System, Acceleration
Thai units, Mass and weight
Japanese, Mass and weight
US Surveyors' Measure, Distance and Length
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Old Austrian, Historical Lengths
Old German (Prussian), Historical Lengths
G
g
(gram)
Metric, Historical weights
g
(Standard acceleration of free fall on Earth)
Free Fall Acceleration (Solar System), Acceleration
g
(gram)
Metric, Mass and weight
G
(giga)
Metric Prefixes, Franctions and Percent
gal
(gallon (liquid))
U.S. Measure, Historical Units of Capacity
gal
(gallon (dry))
U.S. Measure, Historical Units of Capacity
gal
(gallon)
British Imperial Liquid And Dry, Capacity and volume
gal
(gallon)
U.S. Dry Measure, Capacity and volume
gal
(gallon)
U.S. Liquid Measure, Capacity and volume
Gal
(Galileo)
Other Units, Acceleration
gal/100km
(gallon per 100 km)
Other units, Fuel economy
gal/day
(U.S. gallon per day)
U.S. and British Imperial, Flow rate by volume
Galileo
(Gal)
Other Units, Acceleration
gallon
(gal)
British Imperial Liquid And Dry, Capacity and volume
gallon
(gal)
U.S. Dry Measure, Capacity and volume
gallon
(gal)
U.S. Liquid Measure, Capacity and volume
British and American, Energy and Work
British and American, Energy and Work
gallon (dry)
(gal)
U.S. Measure, Historical Units of Capacity
gallon (liquid)
(gal)
U.S. Measure, Historical Units of Capacity
gallon per 100 km
(gal/100km)
Other units, Fuel economy
U.S. system, Fuel economy
U.S. system, Fuel economy
gal/year
(U.S. gallon per year)
U.S. and British Imperial, Flow rate by volume
Gambian Dalasi
(GMD)
African Curriencies, Currency
Old Russian Dry Measure, Historical Units of Capacity
Radiation dose examples, Radiation
Gb [GiB]
(gigabyte [gibibyte])
Data Storage and Transmission, Computer storage
Gbit [Gibit]
(gigabit [gibibit])
Data Storage and Transmission, Computer storage
Gbps
(gigabit per second)
Basic Units of Data Transfer Rate, Data transfer rate
GBq
(gigabecquerel)
SI radioactivity units, Radioactivity
GB/s
(gigabyte per second)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
g/day
(gram per day)
Metric, Flow rate by mass
Geographical (German), Distance and Length
Georgian Lari
(GEL)
Asian Currencies, Currency
Biblical, Historical weights
Ancient Roman, Historical Units of Area
Artillery, Circular measure
Chinese units of 1915, Capacity and volume
Chinese units of 1930, Capacity and volume
gf/cm²
(gram per square centimeter)
Metric, Stress and Pressure
Ghanaian Cedi
(GHS)
African Curriencies, Currency
g/hour
(gram per hour)
Metric, Flow rate by mass
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
gibibyte per second
(GiB/s)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Gibraltar Pound
(GIP)
European Currencies, Currency
GiB/s
(gibibyte per second)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
giga
(G)
Metric Prefixes, Franctions and Percent
gigabecquerel
(GBq)
SI radioactivity units, Radioactivity
gigabit [gibibit]
(Gbit [Gibit])
Data Storage and Transmission, Computer storage
gigabit per second
(Gbps)
Basic Units of Data Transfer Rate, Data transfer rate
gigabyte [gibibyte]
(Gb [GiB])
Data Storage and Transmission, Computer storage
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
gigabyte per second
(GB/s)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Common Units, Power
Common Units, Power
Common Units, Power
gigatonne of coal equivalent
(Gtce)
Coal Energy Equivalent, Energy and Work
gigatonne of oil equivalent
(Gtoe)
Oil Energy Equivalent, Energy and Work
U.S. Liquid Measure, Capacity and volume
Apothecaries, Capacity and volume
g/min
(gram per minute)
Metric, Flow rate by mass
British Imperial Measure before 1963, Distance and Length
Gold (troy ounce)
(XAU)
Other Currencies and More, Currency
Wire Gauges, Wire and Needle Gauge
Japanese, Capacity and volume
gph
(U.S. gallon per hour)
U.S. and British Imperial, Flow rate by volume
gpm
(U.S. gallon per minute)
U.S. and British Imperial, Flow rate by volume
Computer Connection Speed, Data transfer rate
gps
(U.S. gallon per second)
U.S. and British Imperial, Flow rate by volume
gr
(grain)
Apothecaries, Mass and weight
gr
(grain)
Avoirdupois (U.S. / British), Mass and weight
grad
(grade)
Common Units, Circular measure
grade
(grad)
Common Units, Circular measure
Ancient Roman, Historical Lengths
grain
(gr)
Apothecaries, Mass and weight
Troy, Mass and weight
grain
(gr)
Avoirdupois (U.S. / British), Mass and weight
gram
(g)
Metric, Historical weights
gram
(g)
Metric, Mass and weight
Gravitational Metric System, Force
Metric, Torque
Metric, Torque
gram per cubic centimeter
(g/cm³)
Metric System, Density
gram per cubic decimeter
(g/dm³)
Metric System, Density
gram per cubic meter
(g/m³)
Metric System, Density
gram per day
(g/day)
Metric, Flow rate by mass
gram per hour
(g/hour)
Metric, Flow rate by mass
gram per litre
(g/L)
Metric System, Density
gram per millilitre
(g/mL)
Metric System, Density
gram per minute
(g/min)
Metric, Flow rate by mass
gram per second
(g/s)
Metric, Flow rate by mass
gram per square centimeter
(gf/cm²)
Metric, Stress and Pressure
gram per year
(g/year)
Metric, Flow rate by mass
Old German (Prussian), Historical weights
Old Spanish, Historical weights
Old Portuguese, Historical weights
grave-force
(Gf)
Gravitational Metric System, Force
gravet-force
(gf)
Gravitational Metric System, Force
Illuminance examples, Illuminance
Quantity Units, Franctions and Percent
Quantity Units, Franctions and Percent
Greek numerals, Roman numbers, Hex, Octal and more
Common units, Time
Quantity Units, Franctions and Percent
g/s
(gram per second)
Metric, Flow rate by mass
Gtce
(gigatonne of coal equivalent)
Coal Energy Equivalent, Energy and Work
Gtoe
(gigatonne of oil equivalent)
Oil Energy Equivalent, Energy and Work
Guatemalan Quetzal
(GTQ)
Central American Currencies, Currency
Guernsey Pound
(GGP)
European Currencies, Currency
Guinean Franc
(GNF)
African Curriencies, Currency
US Surveyors' Measure, Distance and Length
US Surveyors' Measure, Distance and Length
US Surveyors' Measure, Distance and Length
US Surveyors' Measure, Distance and Length
US Surveyors' Measure, Distance and Length
Gurley's chain
(ch)
US Surveyors' Measure, Distance and Length
US Surveyors' Measure, Distance and Length
Guyanaese Dollar
(GYD)
South American Currencies, Currency
g/year
(gram per year)
Metric, Flow rate by mass
H
h
(hecto)
Metric Prefixes, Franctions and Percent
Haitian Gourde
(HTG)
Currencies of the Caribbean, Currency
Quantity Units, Franctions and Percent
half or .5
(1/2)
Fractions, Franctions and Percent
Ancient Greek, Historical Lengths
hand
(hd)
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Biblical, Historical Lengths
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
Chinese units of 1915 before 1930, Mass and weight
Chinese units between 1930 and 1959, Mass and weight
Chinese units since 1959, Mass and weight
Ancient Greek, Historical Lengths
Thai units, Mass and weight
hd
(hand)
British Imperial Measure before 1963, Distance and Length
Metric, Historical Units of Area
hecto
(h)
Metric Prefixes, Franctions and Percent
hectoliter
(hl)
Metric, Capacity and volume
hectopascal
(hPa)
Metric, Stress and Pressure
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
Ancient Greek, Historical Units of Area
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
Ancient Greek, Historical Units of Area
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Ancient Greek, Historical Lengths
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Common Radix Numerals, Roman numbers, Hex, Octal and more
h ft
(hoppus foot, hoppus cube)
Lumber measure, Capacity and volume
Biblical and Talmudic Liquid Measure (Old Testament), Historical Units of Capacity
Ancient Greek, Historical Lengths
Japanese, Distance and Length
hl
(hectoliter)
Metric, Capacity and volume
English brewery cask units, Capacity and volume
English wine cask units, Capacity and volume
Honduran Lempira
(HNL)
Central American Currencies, Currency
Hong Kong Dollar, $
(HKD)
Major World Currencies, Currency
Hong Kong Shoe Size, Shoe Size Conversion
hoppus foot, hoppus cube
(h ft)
Lumber measure, Capacity and volume
hoppus ton
(HT)
Lumber measure, Capacity and volume
horizontal pitch
(HP)
Computer Equipment, Distance and Length
horsepower, boiler
(hp(S))
Common Units, Power
horsepower, electric
(hp(E))
Common Units, Power
horsepower hour
(hp*h)
Common Units, Energy and Work
Common Units, Power
Common Units, Power
horsepower, metric
(hp(M))
Common Units, Power
Radiation dose examples, Radiation
Data Transfer Time (older, 1024-based), Data transfer rate
Data Transfer Time (current, 1000-based), Data transfer rate
Data Transfer Time (older, 1024-based), Data transfer rate
Data Transfer Time (current, 1000-based), Data transfer rate
HP
(horizontal pitch)
Computer Equipment, Distance and Length
hPa
(hectopascal)
Metric, Stress and Pressure
hp*h
(horsepower hour)
Common Units, Energy and Work
HT
(hoppus ton)
Lumber measure, Capacity and volume
Quantity Units, Franctions and Percent
Hungarian Forint
(HUF)
European Currencies, Currency
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
Chinese units since 1959, Mass and weight
Chinese units of 1915, Capacity and volume
Japanese, Mass and weight
I
Icelandic Króna
(ISK)
European Currencies, Currency
Wire Gauges, Wire and Needle Gauge
in
(Diameter in inches)
Wire diameter, Wire and Needle Gauge
in
(inch)
The American System of Measures (US Customary Units), Historical Lengths
in
(inch)
British Imperial Measure before 1963, Distance and Length
in
(inch)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
in²
(Section area in square inches)
Wire section area, Wire and Needle Gauge
in²
(square inch)
British (Imperial) And U.S. System, Historical Units of Area
in³
(cubic inch)
British and U.S. derivatives of length units, Capacity and volume
in³/day
(cubic inch per day)
U.S. and British Imperial, Flow rate by volume
in³/hour
(cubic inch per hour)
U.S. and British Imperial, Flow rate by volume
in³/min
(cubic inch per minute)
U.S. and British Imperial, Flow rate by volume
in³/s
(cubic inch per second)
U.S. and British Imperial, Flow rate by volume
in³/year
(cubic inch per year)
U.S. and British Imperial, Flow rate by volume
Old Russian, Historical Lengths
inch
(in)
The American System of Measures (US Customary Units), Historical Lengths
inch
(in)
British Imperial Measure before 1963, Distance and Length
inch
(in)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Mercury, Stress and Pressure
Water (at 39.2°F, 4°C), Stress and Pressure
British (Imperial) And U.S. System, Speed
British (Imperial) And U.S. System, Speed
British (Imperial) And U.S. System, Speed
inch per second squared
(in/s²)
British (Imperial) And U.S. System, Acceleration
British (Imperial) And U.S. System, Speed
Indian Rupee
(INR)
Asian Currencies, Currency
Indonesian Rupiah
(IDR)
Asian Currencies, Currency
in/s²
(inch per second squared)
British (Imperial) And U.S. System, Acceleration
Iranian Rial
(IRR)
Middle East Currencies, Currency
Iraqi Dinar
(IQD)
Middle East Currencies, Currency
Computer Connection Speed, Data transfer rate
Israeli New Sheqel
(ILS)
Middle East Currencies, Currency
Ancient Egypt, Historical Lengths
J
J
(joule)
International System (SI), Energy and Work
Jamaican Dollar
(JMD)
Currencies of the Caribbean, Currency
Japanese Yen, ¥
(JPY)
Major World Currencies, Currency
Jersey Pound
(JEP)
European Currencies, Currency
Chinese units between 1930 and 1959, Mass and weight
Chinese units since 1959, Mass and weight
Chinese units of 1915 before 1930, Mass and weight
Jordanian Dinar
(JOD)
Asian Currencies, Currency
joule
(J)
International System (SI), Energy and Work
Common Units, Power
Common Units, Power
Common Units, Power
Japanese, Distance and Length
Common units, Time
K
k
(kilo)
Metric Prefixes, Franctions and Percent
K
(kelvin)
Temperature increment conversion, Temperature increment
K
(kelvin)
Temperature scale conversion, Temperature
Ancient Greek, Historical Lengths
Japanese, Mass and weight
Old Austrian, Historical weights
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
Kazakhstani Tenge
(KZT)
Asian Currencies, Currency
Kbit [Kibit]
(kilobit [kibibit])
Data Storage and Transmission, Computer storage
Kb [KiB]
(kilobyte [kibybyte])
Data Storage and Transmission, Computer storage
kBOE
(kilobarrel of oil equivalent)
Oil Energy Equivalent, Energy and Work
Kbps
(kilobit per second)
Basic Units of Data Transfer Rate, Data transfer rate
kBq
(kilobecquerel)
SI radioactivity units, Radioactivity
KB/s
(kilobyte per second)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
kcal
(kilocalorie)
Common Units, Energy and Work
Kcmil
(Section area in thousands of circular mils)
Wire section area, Wire and Needle Gauge
kcmil, MCM
(thousand of circular mils)
Units for Measuring Wire Gauges, Area
kelvin
(K)
Temperature increment conversion, Temperature increment
kelvin
(K)
Temperature scale conversion, Temperature
Kenyan Shilling
(KES)
African Curriencies, Currency
Japanese, Distance and Length
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
kg
(kilogram)
Metric, Historical weights
kg
(kilogram)
Metric, Mass and weight
kg/day
(kilogram per day)
Metric, Flow rate by mass
kgf/cm²
(kilogram per square centimeter)
Metric, Stress and Pressure
kgf/m²
(kilogram per square meter)
Metric, Stress and Pressure
kg/hour
(kilogram per hour)
Metric, Flow rate by mass
kg/min
(kilogram per minute)
Metric, Flow rate by mass
kg/s
(kilogram per second)
Metric, Flow rate by mass
kg/year
(kilogram per year)
Metric, Flow rate by mass
Decimal numbers, Roman numbers, Hex, Octal and more
Thai units, Distance and Length
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
kibibyte per second
(KiB/s)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
KiB/s
(kibibyte per second)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
English brewery cask units, Capacity and volume
kilo
(k)
Metric Prefixes, Franctions and Percent
kilobarrel of oil equivalent
(kBOE)
Oil Energy Equivalent, Energy and Work
kilobecquerel
(kBq)
SI radioactivity units, Radioactivity
kilobit [kibibit]
(Kbit [Kibit])
Data Storage and Transmission, Computer storage
kilobit per second
(Kbps)
Basic Units of Data Transfer Rate, Data transfer rate
kilobyte [kibybyte]
(Kb [KiB])
Data Storage and Transmission, Computer storage
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
kilobyte per second
(KB/s)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
kilocalorie
(kcal)
Common Units, Energy and Work
Common Units, Power
Common Units, Power
Common Units, Power
kilogram
(kg)
Metric, Historical weights
kilogram
(kg)
Metric, Mass and weight
kilogram-force
(kgf)
Gravitational Metric System, Force
kilogram-force centimeter
(kgf.cm)
Metric, Torque
kilogram-force meter
(kgf.m)
Metric, Torque
Common Units, Power
Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work
Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work
Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work
Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work
TNT Energy Equivalent, Energy and Work
kilogram per cubic centimeter
(kg/cm³)
Metric System, Density
kilogram per cubic decimeter
(kg/dm³)
Metric System, Density
kilogram per cubic meter
(kg/m³)
Metric System, Density
kilogram per day
(kg/day)
Metric, Flow rate by mass
kilogram per hour
(kg/hour)
Metric, Flow rate by mass
kilogram per litre
(kg/L)
Metric System, Density
kilogram per millilitre
(kg/mL)
Metric System, Density
kilogram per minute
(kg/min)
Metric, Flow rate by mass
kilogram per second
(kg/s)
Metric, Flow rate by mass
kilogram per square centimeter
(kgf/cm²)
Metric, Stress and Pressure
kilogram per square meter
(kgf/m²)
Metric, Stress and Pressure
kilogram per year
(kg/year)
Metric, Flow rate by mass
kilojoule
(kJ)
International System (SI), Energy and Work
kilometer
(km)
Metric, Historical Lengths
kilometer
(km)
Metric, Distance and Length
Metric, Speed
Metric, Speed
kilometer per second
(km/s)
Metric, Speed
kilometer per second squared
(km/s²)
Metric, Acceleration
Metric, Speed
kilonewton
(kN)
International System (SI), Force
Metric, Mass and weight
kilonewton per square meter
(kN/m²)
Metric, Stress and Pressure
kilopascal
(kPa)
Metric, Stress and Pressure
Avoirdupois (U.S. / British), Mass and weight
Metric, Mass and weight
kilowatt hour
(kW*h)
Common Units, Energy and Work
Japanese, Mass and weight
Historical Units Still In Use Today, Area
kJ
(kilojoule)
International System (SI), Energy and Work
Old Austrian, Historical Lengths
Ancient Roman, Historical Units of Area
km
(kilometer)
Metric, Historical Lengths
km
(kilometer)
Metric, Distance and Length
km²
(square kilometer)
Metric, Historical Units of Area
km³
(cubic kilometer)
Metric, Capacity and volume
km/gal
(km per gallon)
Other units, Fuel economy
km/l
(km per litre)
Metric system, Fuel economy
km per gallon
(km/gal)
Other units, Fuel economy
km per litre
(km/l)
Metric system, Fuel economy
km/s²
(kilometer per second squared)
Metric, Acceleration
kN
(kilonewton (on Earth surface))
Metric, Mass and weight
Ancient Egypt, Historical Lengths
kN/m²
(kilonewton per square meter)
Metric, Stress and Pressure
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Japanese, Capacity and volume
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Ancient Greek, Historical Lengths
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
Old Russian, Historical Lengths
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
kPa
(kilopascal)
Metric, Stress and Pressure
ksi
(thousand pounds per square inch)
British and U.S. (Imperial system), Stress and Pressure
Kuwaiti Dinar
(KWD)
Middle East Currencies, Currency
Old Swedish, Historical Lengths
kW*h
(kilowatt hour)
Common Units, Energy and Work
Thai units, Capacity and volume
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
Kyrgystani Som
(KGS)
Asian Currencies, Currency
L
l
(liter)
Metric, Historical Units of Capacity
l
(liter)
Metric, Capacity and volume
L
(Planck length)
Natural units, Distance and Length
l/100km
(litres per 100 km)
Metric system, Fuel economy
l/10km
(litres per 10 km)
Metric system, Fuel economy
L⁻¹MT⁻²
(Planck pressure)
Natural units, Stress and Pressure
L²MT⁻²
(Planck energy)
Natural units, Energy and Work
L³
(Planck volume)
Natural units, Capacity and volume
Old Spanish, Historical Units of Area
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Laotian Kip
(LAK)
Asian Currencies, Currency
Foot and Last lengths, Shoe Size Conversion
Foot and Last lengths, Shoe Size Conversion
Foot and Last lengths, Shoe Size Conversion
l atm
(liter-atmosphere)
Common Units, Energy and Work
lb
(pound)
Avoirdupois (U.S.), Historical weights
lb
(pound)
Avoirdupois (U.S. / British), Mass and weight
lb/day
(pound per day)
U.S. and British Imperial, Flow rate by mass
lb/hour
(pound per hour)
U.S. and British Imperial, Flow rate by mass
lb/min
(pound per minute)
U.S. and British Imperial, Flow rate by mass
lb/s
(pound per second)
U.S. and British Imperial, Flow rate by mass
lb/year
(pound per year)
U.S. and British Imperial, Flow rate by mass
l/day
(liter per day)
Metric, Flow rate by volume
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Old Spanish, Historical Units of Area
Lebanese Pound
(LBP)
African Curriencies, Currency
Old Spanish, Historical Lengths
Old Spanish, Historical Lengths
Lesotho Loti
(LSL)
African Curriencies, Currency
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
Ancient Roman, Historical Lengths
Acute radiation syndrome, Radiation
l/hour
(liter per hour)
Metric, Flow rate by volume
Chinese units of 1915 before 1930, Mass and weight
Chinese units since 1959, Mass and weight
Chinese units between 1930 and 1959, Mass and weight
Liberian Dollar
(LRD)
African Curriencies, Currency
Old Spanish, Historical weights
Ancient Roman, Historical weights
Libyan Dinar
(LYD)
African Curriencies, Currency
Ancient Greek, Historical Lengths
Old French, Historical Lengths
Old French, Historical Lengths
Old French, Historical Lengths
Old French, Historical Lengths
Grace Hopper's units of distance, Distance and Length
Astronomical, Distance and Length
Grace Hopper's units of distance, Distance and Length
Grace Hopper's units of distance, Distance and Length
Astronomical, Distance and Length
Astronomical, Distance and Length
Old French, Historical Lengths
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Old Russian, Historical Lengths
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Old Spanish, Historical Lengths
Old Portuguese, Historical Lengths
Old Austrian, Historical Lengths
Old German (Prussian), Historical Lengths
Old Swedish, Historical Lengths
Old Swedish, Historical Lengths
Old Swedish, Historical weights
liter
(l)
Metric, Historical Units of Capacity
liter
(l)
Metric, Capacity and volume
liter-atmosphere
(l atm)
Common Units, Energy and Work
Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work
Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work
Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work
Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work
liter per day
(l/day)
Metric, Flow rate by volume
liter per hour
(l/hour)
Metric, Flow rate by volume
liter per minute
(l/min)
Metric, Flow rate by volume
liter per second
(l/s)
Metric, Flow rate by volume
liter per year
(l/year)
Metric, Flow rate by volume
litres per 100 km
(l/100km)
Metric system, Fuel economy
British system, Fuel economy
litres per 10 km
(l/10km)
Metric system, Fuel economy
Old French, Historical Units of Capacity
Old French, Historical weights
Chinese units since 1959, Mass and weight
Chinese units of 1930, Distance and Length
Chinese units between 1930 and 1959, Mass and weight
Chinese units of 1915, Distance and Length
Chinese units of 1915 before 1930, Mass and weight
Chinese units of 1915, Area
Chinese units of 1930, Area
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
lm/cm²
(lumen per square centimeter)
Luminamce per area units, Illuminance
lm/ft²
(lumen per square foot)
Luminamce per area units, Illuminance
l/min
(liter per minute)
Metric, Flow rate by volume
lm/in²
(lumen per square inch)
Luminamce per area units, Illuminance
lm/m²
(lumen per square meter)
Luminamce per area units, Illuminance
Biblical and Talmudic Liquid Measure (Old Testament), Historical Units of Capacity
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
Avoirdupois (U.S. / British), Mass and weight
British and U.S., Torque
Avoirdupois (U.S. / British), Mass and weight
British and U.S. (Imperial system), Stress and Pressure
British and U.S. (Imperial system), Stress and Pressure
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
Old Russian, Historical weights
Old Austrian, Historical weights
Old German (Prussian), Historical weights
l/s
(liter per second)
Metric, Flow rate by volume
Computer Connection Speed, Data transfer rate
lumen per square centimeter
(lm/cm²)
Luminamce per area units, Illuminance
lumen per square foot
(lm/ft²)
Luminamce per area units, Illuminance
lumen per square inch
(lm/in²)
Luminamce per area units, Illuminance
lumen per square meter
(lm/m²)
Luminamce per area units, Illuminance
International System (SI), Illuminance
lx
(lux (lumen per square meter))
International System (SI), Illuminance
l/year
(liter per year)
Metric, Flow rate by volume
M
m
(meter)
Metric, Historical Lengths
m
(Storage length in meters)
CNC Memory Capacity, Computer storage
m
(milli)
Metric Prefixes, Franctions and Percent
m
(meter)
Metric, Distance and Length
M
(mega)
Metric Prefixes, Franctions and Percent
M
(Planck mass)
Natural units, Mass and weight
m²
(square meter)
Metric, Historical Units of Area
m³
(cubic meter)
Metric, Historical Units of Capacity
m³
(cubic meter)
Metric, Capacity and volume
m³/day
(cubic meter per day)
Metric, Flow rate by volume
m³/hour
(cubic meter per hour)
Metric, Flow rate by volume
m³/min
(cubic meter per minute)
Metric, Flow rate by volume
m³/s
(cubic meter per second)
Metric, Flow rate by volume
m³/year
(cubic meter per year)
Metric, Flow rate by volume
Macanese Pataca
(MOP)
Asian Currencies, Currency
Macedonian Denar
(MKD)
European Currencies, Currency
Hong Kong, Mass and weight
Hong Kong, Mass and weight
Old Russian, Historical Lengths
Malagasy Ariary
(MGA)
African Curriencies, Currency
Malawian Kwacha
(MWK)
African Curriencies, Currency
Malaysian Ringgit
(MYR)
Asian Currencies, Currency
Maldivian Rufiyaa
(MVR)
Asian Currencies, Currency
U.S. and Canada Customary Shoe Size, Shoe Size Conversion
Manx pound (Isle of Man)
(IMP)
European Currencies, Currency
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Old Portuguese Dry Measure, Historical Units of Capacity
Old Spanish, Historical weights
Old Swedish, Historical weights
Old Austrian, Historical weights
Old German (Prussian), Historical weights
Indian units (Akbar system), Mass and weight
Indian units (Akbar system), Mass and weight
Mauritanian Ouguiya
(MRU)
African Curriencies, Currency
Mauritian Rupee
(MUR)
African Curriencies, Currency
Thai units, Mass and weight
Mbit [Mibit]
(megabit [mebibit])
Data Storage and Transmission, Computer storage
Mb [MiB]
(megabyte [mebibyte])
Data Storage and Transmission, Computer storage
Mbps
(megabit per second)
Basic Units of Data Transfer Rate, Data transfer rate
MBq
(megabecquerel)
SI radioactivity units, Radioactivity
MB/s
(megabyte per second)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
Mcal
(megacalorie)
Common Units, Energy and Work
mcf
(mil cubic feet)
British and U.S. derivatives of length units, Capacity and volume
mcg
(microgram)
Metric, Mass and weight
mCi
(millicurie)
Other units, Radioactivity
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
mebibyte per second
(MiB/s)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
Old Spanish Dry Measure, Historical Units of Capacity
mega
(M)
Metric Prefixes, Franctions and Percent
megabecquerel
(MBq)
SI radioactivity units, Radioactivity
megabit [mebibit]
(Mbit [Mibit])
Data Storage and Transmission, Computer storage
megabit per second
(Mbps)
Basic Units of Data Transfer Rate, Data transfer rate
megabyte [mebibyte]
(Mb [MiB])
Data Storage and Transmission, Computer storage
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
megabyte per second
(MB/s)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
megacalorie
(Mcal)
Common Units, Energy and Work
megajoule
(MJ)
International System (SI), Energy and Work
meganewton
(MN)
International System (SI), Force
meganewton per square meter
(MN/m²)
Metric, Stress and Pressure
megapascal
(MPa)
Metric, Stress and Pressure
megatonne of coal equivalent
(Mtce)
Coal Energy Equivalent, Energy and Work
megatonne of oil equivalent
(Mtoe)
Oil Energy Equivalent, Energy and Work
Ancient Egypt, Historical Lengths
Ancient Egypt, Historical Lengths
Old Austrian, Historical Lengths
Old German (Prussian), Historical Lengths
Old Portuguese Liquid Measure, Historical Units of Capacity
Old Portuguese Dry Measure, Historical Units of Capacity
meter
(m)
Metric, Historical Lengths
meter
(m)
Metric, Distance and Length
Photography units, Illuminance
Water (at 39.2°F, 4°C), Stress and Pressure
Metric, Speed
Metric, Speed
meter per second
(m/s)
Metric, Speed
meter per second squared
(m/s²)
Metric, Acceleration
Metric, Speed
metre-kilogram
(mkg)
Common Units, Energy and Work
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Metric, Mass and weight
Metric Needle Size
(mm)
Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge
Metric, Mass and weight
Common Units, Power
Mexican Peso
(MXN)
North American Currencies, Currency
Mexico Shoe Size, Shoe Size Conversion
Mexico Shoe Size, Shoe Size Conversion
Mexico Shoe Size, Shoe Size Conversion
Old Russian, Historical Lengths
mfbm, mbdft, mbf
(thousand board-feet)
Lumber measure, Capacity and volume
mg
(milligram)
Metric, Mass and weight
mi
(mile)
The American System of Measures (US Customary Units), Historical Lengths
mi
(mile)
British Imperial Measure before 1963, Distance and Length
mi
(mile)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
mi³
(cubic mile)
British and U.S. derivatives of length units, Capacity and volume
MiB/s
(mebibyte per second)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
micro
(µ, mc)
Metric Prefixes, Franctions and Percent
microcurie
(µCi)
Other units, Radioactivity
microgram
(mcg)
Metric, Mass and weight
The American System (US Customary Units) and British Imperial Measures, Distance and Length
microliter
(µl)
Metric, Capacity and volume
micronewton
(µN)
International System (SI), Force
microroentgen
(µR)
Exposure to ionizing radiation, Radiation
microsecond
(µs)
Common units, Time
microsievert
(µSv)
Dose equivalent radiation, Radiation
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
mil cubic feet
(mcf)
British and U.S. derivatives of length units, Capacity and volume
Old Russian, Historical Lengths
mile
(mi)
The American System of Measures (US Customary Units), Historical Lengths
mile
(mi)
British Imperial Measure before 1963, Distance and Length
mile
(mi)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
mile per British gallon
(mpg)
British system, Fuel economy
mile per hour
(mph)
British (Imperial) And U.S. System, Speed
British system, Fuel economy
British (Imperial) And U.S. System, Speed
British (Imperial) And U.S. System, Speed
British (Imperial) And U.S. System, Acceleration
British (Imperial) And U.S. System, Speed
miles per gallon
(mpg)
U.S. system, Fuel economy
Ancient Greek, Historical Lengths
Old Spanish, Historical Lengths
Old Spanish, Historical Lengths
Ancient Roman, Historical Lengths
milli
(m)
Metric Prefixes, Franctions and Percent
Metric, Stress and Pressure
millicoulomb per kilogram
(mC/kg)
Exposure to ionizing radiation, Radiation
millicurie
(mCi)
Other units, Radioactivity
milligram
(mg)
Metric, Mass and weight
Gravitational Metric System, Force
milligram per cubic centimeter
(mg/cm³)
Metric System, Density
milligram per cubic decimeter
(mg/dm³)
Metric System, Density
milligram per cubic meter
(mg/m³)
Metric System, Density
milligram per litre
(mg/L)
Metric System, Density
milligram per millilitre
(mg/mL)
Metric System, Density
milligrave-force
(mGf)
Gravitational Metric System, Force
milliliter
(ml)
Metric, Historical Units of Capacity
milliliter
(ml)
Metric, Capacity and volume
millimeter
(mm)
Metric, Historical Lengths
millimeter
(mm)
Metric, Distance and Length
Water (at 39.2°F, 4°C), Stress and Pressure
millimeter per second squared
(mm/s²)
Metric, Acceleration
millinewton
(mN)
International System (SI), Force
million board-feet
(mmfbm, mmbdft, mmbf)
Lumber measure, Capacity and volume
million BTU
(MMBTU)
British and American, Energy and Work
Natural Gas Energy Equivalent, Energy and Work
Natural Gas Energy Equivalent, Energy and Work
Centimeter-Gram-Second System (CGS), Illuminance
milliroentgen
(mR)
Exposure to ionizing radiation, Radiation
millisecond
(ms)
Common units, Time
millisievert
(mSv)
Dose equivalent radiation, Radiation
Old Swedish, Historical Lengths
min
(minim)
British Imperial Liquid And Dry, Capacity and volume
min
(minim)
U.S. Liquid Measure, Capacity and volume
Biblical, Historical weights
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
minim
(min)
British Imperial Liquid And Dry, Capacity and volume
Apothecaries, Capacity and volume
minim
(min)
U.S. Liquid Measure, Capacity and volume
Old French, Historical Units of Capacity
minute
(′)
Common Units, Circular measure
Data Transfer Time (older, 1024-based), Data transfer rate
Data Transfer Time (current, 1000-based), Data transfer rate
Data Transfer Time (older, 1024-based), Data transfer rate
Data Transfer Time (current, 1000-based), Data transfer rate
Pace (Various Sports), Speed
Pace (Various Sports), Speed
Troy, Mass and weight
Baha'i Faith Units, Historical weights
MJ
(megajoule)
International System (SI), Energy and Work
mkg
(metre-kilogram)
Common Units, Energy and Work
ml
(milliliter)
Metric, Historical Units of Capacity
ml
(milliliter)
Metric, Capacity and volume
mm
(Metric Needle Size)
Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge
mm
(Diameter in millimetres)
Wire diameter, Wire and Needle Gauge
mm
(millimeter)
Metric, Historical Lengths
mm
(millimeter)
Metric, Distance and Length
mm²
(IEC 60228:2004 Standard Wire Cross-Section)
Wire Gauges, Wire and Needle Gauge
mm²
(GOST 22483-2012 Standard Wire Cross-Section)
Wire Gauges, Wire and Needle Gauge
mm²
(Section area in square millimetres)
Wire section area, Wire and Needle Gauge
mm²
(square millimeter)
Metric, Historical Units of Area
mm³
(cubic millimeter)
Metric, Historical Units of Capacity
mm³
(cubic millimeter)
Metric, Capacity and volume
MMBTU
(million BTU)
British and American, Energy and Work
mmfbm, mmbdft, mmbf
(million board-feet)
Lumber measure, Capacity and volume
mm/s²
(millimeter per second squared)
Metric, Acceleration
MN/m²
(meganewton per square meter)
Metric, Stress and Pressure
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Old Portuguese Dry Measure, Historical Units of Capacity
Moldovan Leu
(MDL)
European Currencies, Currency
Mondopoint, Shoe Size Conversion
Mongolian Tugrik
(MNT)
Asian Currencies, Currency
Japanese, Mass and weight
Moroccan Dirham
(MAD)
African Curriencies, Currency
Illuminance examples, Illuminance
Old Spanish Liquid Measure, Historical Units of Capacity
Mozambican Metical
(MZN)
African Curriencies, Currency
Japanese, Distance and Length
MPa
(megapascal)
Metric, Stress and Pressure
mpg
(mile per British gallon)
British system, Fuel economy
mpg
(miles per gallon)
U.S. system, Fuel economy
m/s²
(meter per second squared)
Metric, Acceleration
Mtce
(megatonne of coal equivalent)
Coal Energy Equivalent, Energy and Work
Mtoe
(megatonne of oil equivalent)
Oil Energy Equivalent, Energy and Work
Chinese units of 1915, Area
Chinese units of 1930, Area
Myanma Kyat
(MMK)
Asian Currencies, Currency
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
N
n
(nano)
Metric Prefixes, Franctions and Percent
N
(newton (on Earth surface))
Metric, Mass and weight
British Imperial Measure before 1963, Distance and Length
Baha'i Faith Units, Historical weights
Namibian Dollar
(NAD)
African Curriencies, Currency
nano
(n)
Metric Prefixes, Franctions and Percent
nanometer
(nm)
Metric, Distance and Length
nanosecond
(ns)
Common units, Time
Acute radiation syndrome, Radiation
nautical league
(naut.leag)
International Nautical Measure, Distance and Length
nautical mile
(naut.mi)
International Nautical Measure, Distance and Length
Nautical, Circular measure
naut.leag
(nautical league)
International Nautical Measure, Distance and Length
naut.mi
(nautical mile)
International Nautical Measure, Distance and Length
Ancient Egypt, Historical Lengths
N/cm²
(newton per square centimeter)
Metric, Stress and Pressure
Nepalese Rupee
(NPR)
Asian Currencies, Currency
Quantity Units, Franctions and Percent
Currencies of the Caribbean, Currency
New Taiwan Dollar
(TWD)
Asian Currencies, Currency
newton centimeter
(Ncm)
Metric, Torque
newton meter
(Nm)
Metric, Torque
Metric, Mass and weight
newton per square centimeter
(N/cm²)
Metric, Stress and Pressure
newton per square meter
(N/m²)
Metric, Stress and Pressure
newton per square millimeter
(N/mm²)
Metric, Stress and Pressure
New Zealand Dollar
(NZD)
Currencies of Australia and Oceania, Currency
Thai units, Area
Nicaraguan Cordoba
(NIO)
Central American Currencies, Currency
Nigerian Naira
(NGN)
African Curriencies, Currency
Illuminance examples, Illuminance
Illuminance examples, Illuminance
Thai units, Distance and Length
nit
(nt)
Other units, Illuminance
nm
(nanometer)
Metric, Distance and Length
N/m²
(newton per square meter)
Metric, Stress and Pressure
N/mm²
(newton per square millimeter)
Metric, Stress and Pressure
Illuminance examples, Illuminance
Illuminance examples, Illuminance
Natural Gas Energy Equivalent, Energy and Work
Ring Sizes in the United States, Canada and Mexico, Ring size
North Korean Won
(KPW)
Asian Currencies, Currency
Norwegian Krone
(NOK)
European Currencies, Currency
Other units, Illuminance
nt
(nit)
Other units, Illuminance
O
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Old Spanish, Historical weights
Old Spanish Dry Measure, Historical Units of Capacity
Common Radix Numerals, Roman numbers, Hex, Octal and more
Number of Performers, Franctions and Percent
Old Portuguese Dry Measure, Historical Units of Capacity
Old Portuguese, Historical weights
Old Brazilian Ring Sizes, Ring size
Historical Units Still In Use Today, Area
Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge
Omani Rial
(OMR)
Middle East Currencies, Currency
Old Portuguese, Historical weights
one eights or .125
(1/8)
Fractions, Franctions and Percent
one ninth or .(1)
(1/9)
Fractions, Franctions and Percent
one seventh or .142857
(1/7)
Fractions, Franctions and Percent
one sixteenth or .0625
(1/16)
Fractions, Franctions and Percent
one sixth or .1(6)
(1/6)
Fractions, Franctions and Percent
one tenth or .1
(1/10)
Fractions, Franctions and Percent
one third or .(3)
(1/3)
Fractions, Franctions and Percent
one thirty-second or .03125
(1/32)
Fractions, Franctions and Percent
Old Spanish, Historical weights
Ancient Greek, Historical Lengths
Old Swedish, Historical weights
osi, oz/in²
(ounce per square inch)
British and U.S. (Imperial system), Stress and Pressure
ounce
(oz)
Avoirdupois (U.S.), Historical weights
ounce
(℥)
Apothecaries, Mass and weight
ounce
(ozt)
Troy, Mass and weight
ounce
(oz)
Avoirdupois (U.S. / British), Mass and weight
ounce-force
(ozf)
English Engineering and British Gravitational Units, Force
ounce-force inch
(ozf.in)
British and U.S., Torque
British and U.S., Density
ounce per cubic foot
(oz/ft³)
British and U.S., Density
ounce per cubic inch
(oz/in³)
British and U.S., Density
ounce per cubic yard
(oz/yd³)
British and U.S., Density
ounce per day
(oz/day)
U.S. and British Imperial, Flow rate by mass
ounce per hour
(oz/hour)
U.S. and British Imperial, Flow rate by mass
ounce per minute
(oz/min)
U.S. and British Imperial, Flow rate by mass
ounce per second
(oz/s)
U.S. and British Imperial, Flow rate by mass
British and U.S. (Imperial system), Stress and Pressure
ounce per square inch
(osi, oz/in²)
British and U.S. (Imperial system), Stress and Pressure
British and U.S., Density
ounce per U.S. gallon
(oz/gal)
British and U.S., Density
ounce per year
(oz/year)
U.S. and British Imperial, Flow rate by mass
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
oz
(fluid ounce)
U.S. Measure, Historical Units of Capacity
oz
(ounce)
Avoirdupois (U.S.), Historical weights
oz
(fluid ounce)
British Imperial Liquid And Dry, Capacity and volume
oz
(ounce)
Avoirdupois (U.S. / British), Mass and weight
oz/day
(ounce per day)
U.S. and British Imperial, Flow rate by mass
oz/hour
(ounce per hour)
U.S. and British Imperial, Flow rate by mass
oz/min
(ounce per minute)
U.S. and British Imperial, Flow rate by mass
oz/s
(ounce per second)
U.S. and British Imperial, Flow rate by mass
ozt
(ounce)
Troy, Mass and weight
oz/year
(ounce per year)
U.S. and British Imperial, Flow rate by mass
P
p
(pico)
Metric Prefixes, Franctions and Percent
P
(peta)
Metric Prefixes, Franctions and Percent
Pa
(pascal)
Metric, Stress and Pressure
British Imperial Measure before 1963, Distance and Length
Quantity Units, Franctions and Percent
Pakistani Rupee
(PKR)
Asian Currencies, Currency
Ancient Greek, Historical Lengths
Palladium (troy ounce)
(XPD)
Other Currencies and More, Currency
palm
(plm)
British Imperial Measure before 1963, Distance and Length
Ancient Roman, Historical Lengths
Old Spanish, Historical Lengths
Old Portuguese, Historical Lengths
Old Portuguese, Historical Units of Area
Ancient Roman, Historical Lengths
Ancient Roman, Historical Lengths
Ship tonnage measurements, Capacity and volume
Panamanian Balboa
(PAB)
Central American Currencies, Currency
Old Spanish Liquid Measure, Historical Units of Capacity
Papua New Guinean Kina
(PGK)
Currencies of Australia and Oceania, Currency
Paraguayan Guarani
(PYG)
South American Currencies, Currency
Indian units (Akbar system), Mass and weight
Ancient Greek, Historical Lengths
European footwear unit, Distance and Length
parsec
(pc)
Astronomical, Distance and Length
parts per billion
(ppb)
Percentages and Parts, Franctions and Percent
parts per million
(ppm)
Percentages and Parts, Franctions and Percent
pascal
(Pa)
Metric, Stress and Pressure
Old Spanish, Historical Lengths
Old Portuguese, Historical Lengths
Ancient Roman, Historical Lengths
Pbit [Pibit]
(petabit [pebibit])
Data Storage and Transmission, Computer storage
Pb [PiB]
(petabyte [pebibyte])
Data Storage and Transmission, Computer storage
pc
(parsec)
Astronomical, Distance and Length
pc³
(cubic parsec)
Astronomical, Capacity and volume
Old Portuguese, Historical Lengths
Ancient Greek, Historical Lengths
peck
(pk)
British Imperial Liquid And Dry, Capacity and volume
peck
(pk)
U.S. Dry Measure, Capacity and volume
Ancient Egypt, Historical Lengths
Ancient Egypt, Historical Lengths
pennyweight
(dwt)
Troy, Mass and weight
percent
(%)
Percentages and Parts, Franctions and Percent
British Imperial Liquid And Dry, Capacity and volume
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Old French, Historical Lengths
permille
(‰)
Percentages and Parts, Franctions and Percent
Ancient Roman, Historical Lengths
Peruvian Sol
(PEN)
South American Currencies, Currency
Ancient Roman, Historical Lengths
Ancient Roman, Historical Lengths
peta
(P)
Metric Prefixes, Franctions and Percent
petabit [pebibit]
(Pbit [Pibit])
Data Storage and Transmission, Computer storage
petabyte [pebibyte]
(Pb [PiB])
Data Storage and Transmission, Computer storage
Old German (Prussian), Historical weights
Old Austrian, Historical weights
Old German (Prussian), Historical weights
ph
(phot)
Centimeter-Gram-Second System (CGS), Illuminance
Philippine Peso
(PHP)
Asian Currencies, Currency
phot
(ph)
Centimeter-Gram-Second System (CGS), Illuminance
physical atmosphere
(atm)
Atmosphere, Stress and Pressure
Typographical (British and U.S. - ATA system), Distance and Length
Typographical (British and U.S. - ATA system), Distance and Length
pico
(p)
Metric Prefixes, Franctions and Percent
picosecond
(ps)
Common units, Time
Hong Kong, Mass and weight
Old Spanish, Historical Lengths
Old Spanish, Historical Units of Area
Old French, Historical Lengths
Biblical, Historical weights
English brewery cask units, Capacity and volume
pint
(pt)
British Imperial Liquid And Dry, Capacity and volume
pint
(pt)
Apothecaries, Capacity and volume
pint
(pt)
U.S. Dry Measure, Capacity and volume
pint
(pt)
U.S. Liquid Measure, Capacity and volume
pint (dry)
(pt)
U.S. Measure, Historical Units of Capacity
pint (liquid)
(pt)
U.S. Measure, Historical Units of Capacity
Old Portuguese Liquid Measure, Historical Units of Capacity
pixel
(px)
Typographical (British and U.S. - ATA system), Distance and Length
pk
(peck)
British Imperial Liquid And Dry, Capacity and volume
pk
(peck)
U.S. Dry Measure, Capacity and volume
Planck area
(L²)
Natural units, Area
Planck density
(L⁻³M)
Natural units, Density
Planck energy
(L²MT⁻²)
Natural units, Energy and Work
Planck force
(LMT⁻²)
Natural units, Force
Planck length
(L)
Natural units, Distance and Length
Planck mass
(M)
Natural units, Mass and weight
Planck power
(L²MT⁻³)
Natural units, Power
Planck pressure
(L⁻¹MT⁻²)
Natural units, Stress and Pressure
Temperature increment conversion, Temperature increment
Temperature scale conversion, Temperature
Planck time
(T)
Natural units, Time
Planck volume
(L³)
Natural units, Capacity and volume
Platinum (troy ounce)
(XPT)
Other Currencies and More, Currency
Ancient Greek, Historical Units of Area
Ancient Greek, Historical Lengths
plm
(palm)
British Imperial Measure before 1963, Distance and Length
point
(pt)
Typographical (Europe - Didot system), Distance and Length
point
(pt)
Typographical (British and U.S. - ATA system), Distance and Length
point [PostScript]
(pt)
Typographical (British and U.S. - ATA system), Distance and Length
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Old Portuguese, Historical Lengths
Old Portuguese, Historical Units of Area
Polish Zloty
(PLN)
European Currencies, Currency
Ancient Roman, Historical Lengths
Old Portuguese, Historical Lengths
Old Russian, Historical weights
British Imperial Measure before 1963, Distance and Length
Old Portuguese Liquid Measure, Historical Units of Capacity
Old French, Historical Lengths
Old Russian, Historical weights
pound
(lb)
Avoirdupois (U.S.), Historical weights
pound
(℔, ″)
Apothecaries, Mass and weight
Troy, Mass and weight
pound
(lb)
Avoirdupois (U.S. / British), Mass and weight
pound-force
(lbf)
English Engineering and British Gravitational Units, Force
pound-force foot
(lbsf.ft)
British and U.S., Torque
pound-force inch
(lbsf.in)
British and U.S., Torque
Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work
Liquefied Natural Gas (LNG) Energy Equivalent, Energy and Work
Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work
Liquefied Petrolium Gas (LPG) Energy Equivalent, Energy and Work
British and U.S., Density
pound per cubic foot
(lb/ft³)
British and U.S., Density
pound per cubic inch
(lb/in³)
British and U.S., Density
pound per cubic yard
(lb/yd³)
British and U.S., Density
pound per day
(lb/day)
U.S. and British Imperial, Flow rate by mass
pound per hour
(lb/hour)
U.S. and British Imperial, Flow rate by mass
pound per minute
(lb/min)
U.S. and British Imperial, Flow rate by mass
pound per second
(lb/s)
U.S. and British Imperial, Flow rate by mass
British and U.S. (Imperial system), Stress and Pressure
pound per square inch
(psi)
British and U.S. (Imperial system), Stress and Pressure
British and U.S., Density
pound per U.S. gallon
(lb/gal)
British and U.S., Density
pound per year
(lb/year)
U.S. and British Imperial, Flow rate by mass
Ancient Greek, Historical Lengths
Ancient Greek, Historical Units of Area
Indian units (Akbar system), Mass and weight
ppb
(parts per billion)
Percentages and Parts, Franctions and Percent
ppm
(parts per million)
Percentages and Parts, Franctions and Percent
psi
(pound per square inch)
British and U.S. (Imperial system), Stress and Pressure
pt
(pint (liquid))
U.S. Measure, Historical Units of Capacity
pt
(pint (dry))
U.S. Measure, Historical Units of Capacity
pt
(pint)
British Imperial Liquid And Dry, Capacity and volume
pt
(pint)
Apothecaries, Capacity and volume
pt
(pint)
U.S. Dry Measure, Capacity and volume
pt
(pint)
U.S. Liquid Measure, Capacity and volume
pt
(point)
Typographical (Europe - Didot system), Distance and Length
pt
(point)
Typographical (British and U.S. - ATA system), Distance and Length
pt
(point [PostScript])
Typographical (British and U.S. - ATA system), Distance and Length
Old Spanish, Historical Lengths
English wine cask units, Capacity and volume
Old Austrian, Historical Lengths
Old Spanish, Historical Lengths
Acute radiation syndrome, Radiation
px
(pixel)
Typographical (British and U.S. - ATA system), Distance and Length
Old Russian, Historical Lengths
Ancient Greek, Historical Lengths
Ancient Greek, Historical Lengths
Q
q
(quecto)
Metric Prefixes, Franctions and Percent
Q
(quetta)
Metric Prefixes, Franctions and Percent
Qatari Rial
(QAR)
Middle East Currencies, Currency
Chinese units between 1930 and 1959, Mass and weight
Chinese units since 1959, Mass and weight
Chinese units of 1915 before 1930, Mass and weight
Chinese units of 1915, Area
Chinese units of 1930, Area
qt
(quart)
British Imperial Liquid And Dry, Capacity and volume
qt
(quart)
U.S. Dry Measure, Capacity and volume
qt
(quart)
U.S. Liquid Measure, Capacity and volume
British and American, Energy and Work
Ancient Roman, Historical weights
quart
(qt)
British Imperial Liquid And Dry, Capacity and volume
quart
(qt)
U.S. Dry Measure, Capacity and volume
quart
(qt)
U.S. Liquid Measure, Capacity and volume
Old Portuguese Dry Measure, Historical Units of Capacity
Old Portuguese, Historical weights
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Number of Performers, Franctions and Percent
Old Portuguese Liquid Measure, Historical Units of Capacity
Old Portuguese Liquid Measure, Historical Units of Capacity
Old Portuguese Dry Measure, Historical Units of Capacity
quart, one forth or .25
(1/4)
Fractions, Franctions and Percent
Other Radix Numerals, Roman numbers, Hex, Octal and more
quecto
(q)
Metric Prefixes, Franctions and Percent
Old Austrian, Historical weights
Old German (Prussian), Historical weights
quetta
(Q)
Metric Prefixes, Franctions and Percent
Other Radix Numerals, Roman numbers, Hex, Octal and more
Ancient Roman, Historical weights
Old German (Prussian), Historical weights
Old French, Historical weights
Old Portuguese, Historical weights
Old Spanish, Historical weights
Number of Performers, Franctions and Percent
R
r
(ronto)
Metric Prefixes, Franctions and Percent
R
(ronna)
Metric Prefixes, Franctions and Percent
rack unit
(U)
Computer Equipment, Distance and Length
rad
(radian)
Common Units, Circular measure
radian
(rad)
Common Units, Circular measure
Radian, Angular velocity
Radian, Angular velocity
Radian, Angular velocity
Indian units (Akbar system), Mass and weight
US Surveyors' Measure, Distance and Length
US Surveyors' Measure, Distance and Length
Indian units (Akbar system), Mass and weight
rd
(rutherford)
Other units, Radioactivity
rd
(rod)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
red shift
(z)
Astronomical, Distance and Length
Ship tonnage measurements, Capacity and volume
Ancient Egypt, Historical Lengths
Old Swedish, Historical Lengths
Old Swedish, Historical Lengths
Revolution, Angular velocity
Revolution, Angular velocity
Revolution, Angular velocity
Revolution, Angular velocity
Revolution, Angular velocity
Ring Sizes in Italy, Spain, Switzerland, the Netherlands, Brazil, India, Ring size
Ring Sizes in Russia, Ukraine, Belarus and Other ex-USSR Countries, Ring size
Japanese, Distance and Length
Japanese, Distance and Length
rod
(rd)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Romanian Leu
(RON)
European Currencies, Currency
Roman numerals, Roman numbers, Hex, Octal and more
Roman numerals, Roman numbers, Hex, Octal and more
ronna
(R)
Metric Prefixes, Franctions and Percent
ronto
(r)
Metric Prefixes, Franctions and Percent
British Imperial Measure before 1963, Distance and Length
Old French, Historical Units of Area
English wine cask units, Capacity and volume
Coal Energy Equivalent, Energy and Work
Russia and CIS (ex-USSR countries) Shoe Size, Shoe Size Conversion
Russian Ruble, ₽
(RUB)
Major World Currencies, Currency
Russia and CIS (ex-USSR countries) Shoe Size, Shoe Size Conversion
Artillery, Circular measure
Russia and CIS (ex-USSR countries) Shoe Size, Shoe Size Conversion
Old Austrian, Historical Lengths
Old German (Prussian), Historical Lengths
rutherford
(rd)
Other units, Radioactivity
Rwandan Franc
(RWF)
African Curriencies, Currency
S
Saint Helena Pound
(SHP)
African Curriencies, Currency
Japanese, Capacity and volume
Ancient Roman, Historical Units of Area
Thai units, Mass and weight
Salvadoran Colón
(SVC)
Central American Currencies, Currency
Samoan Tala
(WST)
Currencies of Australia and Oceania, Currency
African Curriencies, Currency
African Curriencies, Currency
Thai units, Capacity and volume
Saudi Riyal
(SAR)
Middle East Currencies, Currency
Old Austrian, Historical weights
Old Russian, Historical Lengths
sb
(stilb)
Other units, Illuminance
scc
(cubic centimeter of atmosphere, standard cubic centimeter)
Common Units, Energy and Work
scf
(cubic foot of atmosphere, standard cubic foot)
British and American, Energy and Work
Old German (Prussian), Historical weights
Ancient Roman, Historical Lengths
Ancient Greek, Historical Lengths
Quantity Units, Franctions and Percent
scruple
(℈)
Apothecaries, Mass and weight
Ancient Roman, Historical weights
scy
(cubic yard of atmosphere, standard cubic yard)
British and American, Energy and Work
Biblical and Talmudic Dry Measure (Old Testament), Historical Units of Capacity
Nautical, Speed
second
(″)
Common Units, Circular measure
Data Transfer Time (older, 1024-based), Data transfer rate
Data Transfer Time (current, 1000-based), Data transfer rate
Data Transfer Time (older, 1024-based), Data transfer rate
Data Transfer Time (current, 1000-based), Data transfer rate
Car performance, Acceleration
Car performance, Acceleration
Car performance, Acceleration
Car performance, Acceleration
Pace (Various Sports), Speed
Pace (Various Sports), Speed
Pace (Various Sports), Speed
Pace (Various Sports), Speed
Pace (Various Sports), Speed
Wire section area, Wire and Needle Gauge
Wire section area, Wire and Needle Gauge
Wire section area, Wire and Needle Gauge
Wire section area, Wire and Needle Gauge
Wire section area, Wire and Needle Gauge
Wire section area, Wire and Needle Gauge
Thai units, Mass and weight
Old Portuguese Dry Measure, Historical Units of Capacity
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Ancient Roman, Historical weights
Ancient Roman, Historical weights
Thai units, Distance and Length
Number of Performers, Franctions and Percent
Ancient Roman, Historical weights
Indian units (Akbar system), Mass and weight
Serbian Dinar
(RSD)
European Currencies, Currency
Ancient Roman, Historical weights
Ancient Roman, Historical weights
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Common Units, Circular measure
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Number of Performers, Franctions and Percent
Ancient Roman, Historical weights
Seychellois Rupee
(SCR)
African Curriencies, Currency
British Imperial Measure before 1963, Distance and Length
British Imperial Measure before 1963, Distance and Length
Japanese, Capacity and volume
Japanese, Distance and Length
Chinese units of 1915, Capacity and volume
Chinese units of 1930, Capacity and volume
Biblical, Historical weights
Chinese units of 1915, Capacity and volume
Chinese units of 1930, Capacity and volume
Ancient Egypt, Historical Lengths
Old Russian Liquid Measure, Historical Units of Capacity
Quantity Units, Franctions and Percent
Avoirdupois (U.S. / British), Mass and weight
British and U.S., Torque
Avoirdupois (U.S.), Historical weights
Avoirdupois (U.S. / British), Mass and weight
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
U.S. and British Imperial, Flow rate by mass
Japanese, Capacity and volume
Old Russian Liquid Measure, Historical Units of Capacity
Thai units, Mass and weight
Ancient Roman, Historical weights
Sierra Leonean Leone
(SLL)
African Curriencies, Currency
Ancient Roman, Historical weights
Silver (troy ounce)
(XAG)
Other Currencies and More, Currency
Singapore Dollar
(SGD)
Asian Currencies, Currency
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
Chinese units between 1930 and 1959, Mass and weight
Chinese units since 1959, Mass and weight
Historical Units Still In Use Today, Area
Old Swedish, Historical weights
British Imperial Measure before 1963, Distance and Length
Old Swedish, Historical weights
Other units, Illuminance
slope percent
(%)
Slope (grade) units, Circular measure
slope permille
(‰)
Slope (grade) units, Circular measure
slug per cubic foot
(slug/ft³)
English Engineering and British Gravitational Units, Density
slug per cubic inch
(slug/in³)
English Engineering and British Gravitational Units, Density
slug per cubic yard
(slug/yd³)
English Engineering and British Gravitational Units, Density
Thai units, Distance and Length
Number of Performers, Franctions and Percent
Solomon Islands Dollar
(SBD)
Currencies of Australia and Oceania, Currency
Thai units, Mass and weight
Somali Shilling
(SOS)
African Curriencies, Currency
South African Rand
(ZAR)
African Curriencies, Currency
South Korean Won
(KRW)
Asian Currencies, Currency
South Sudanese Pound
(SSP)
African Curriencies, Currency
sp
(span)
British Imperial Measure before 1963, Distance and Length
Biblical, Historical Lengths
span
(sp)
British Imperial Measure before 1963, Distance and Length
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Other Currencies and More, Currency
Speed constants and examples, Speed
Speed constants and examples, Speed
Ancient Greek, Historical Lengths
Ancient Roman, Historical Units of Area
Ancient Roman, Historical Units of Area
Old Russian, Historical Units of Area
square centimeter
(cm²)
Metric, Historical Units of Area
square centimeter
(cm²)
Metric, Area
square decimeter
(dm²)
Metric, Area
Ancient Roman, Historical Units of Area
Old Russian, Historical Units of Area
square foot
(ft²)
British (Imperial) And U.S. System, Historical Units of Area
square foot
(ft²)
British (Imperial) And U.S. System, Area
square inch
(in²)
British (Imperial) And U.S. System, Historical Units of Area
square inch
(in²)
British (Imperial) And U.S. System, Area
square kilometer
(km²)
Metric, Historical Units of Area
square kilometer
(km²)
Metric, Area
square meter
(m²)
Metric, Historical Units of Area
square meter
(m²)
Metric, Area
square mil
(th²)
British (Imperial) And U.S. System, Area
British (Imperial) And U.S. System, Historical Units of Area
British (Imperial) And U.S. System, Area
square millimeter
(mm²)
Metric, Historical Units of Area
square millimeter
(mm²)
Metric, Area
Ancient Roman, Historical Units of Area
Ancient Roman, Historical Units of Area
Old French, Historical Units of Area
Old French, Historical Units of Area
British (Imperial) And U.S. System, Area
Old French, Historical Units of Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Historical Units Still In Use Today, Area
Old Russian, Historical Units of Area
square yard
(yd²)
British (Imperial) And U.S. System, Historical Units of Area
square yard
(yd²)
British (Imperial) And U.S. System, Area
Sri Lankan Rupee
(LKR)
Asian Currencies, Currency
st
(stone)
Avoirdupois (U.S. / British), Mass and weight
Ancient Greek, Historical Lengths
Ancient Greek, Historical Lengths
Ancient Greek, Historical Lengths
Ancient Roman, Historical Lengths
Old Austrian, Historical weights
Old German (Prussian), Historical weights
Free Fall Acceleration (Solar System), Acceleration
Natural Gas Energy Equivalent, Energy and Work
Old Swedish, Historical Lengths
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Lumber measure, Capacity and volume
stilb
(sb)
Other units, Illuminance
stone
(st)
Avoirdupois (U.S. / British), Mass and weight
stone, pounds, and ounces
(X st Y lbs Z oz)
Avoirdupois (U.S. / British), Mass and weight
CNC Memory Capacity, Computer storage
CNC Memory Capacity, Computer storage
Historical Units Still In Use Today, Area
Wire Gauges, Wire and Needle Gauge
Sudanese Pound
(SDG)
African Curriencies, Currency
Japanese, Distance and Length
Surinamese Dollar
(SRD)
South American Currencies, Currency
Swazi Lilangeni
(SZL)
African Curriencies, Currency
Swedish Krona
(SEK)
European Currencies, Currency
Swiss Franc, Fr
(CHF)
Major World Currencies, Currency
Astronomical, Time
Astronomical, Time
Astronomical, Time
Syrian Pound
(SYP)
Middle East Currencies, Currency
Medical Needle and Catheter Gauges, Wire and Needle Gauge
T
T
(tera)
Metric Prefixes, Franctions and Percent
Computer Connection Speed, Data transfer rate
Apothecaries, Capacity and volume
Cooking (Australian), Capacity and volume
Cooking (International), Capacity and volume
Cooking (U.S.), Capacity and volume
Hong Kong, Mass and weight
Hong Kong, Mass and weight
Tajikistani Somoni
(TJS)
Asian Currencies, Currency
Biblical, Historical weights
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Decimal numbers, Roman numbers, Hex, Octal and more
Thai units, Mass and weight
Indian units (Akbar system), Mass and weight
Tanzanian Shilling
(TZS)
African Curriencies, Currency
Japanese, Area
Thai units, Area
Tbit [Tibit]
(terabit [tebibit])
Data Storage and Transmission, Computer storage
Tbps
(terabit per second)
Basic Units of Data Transfer Rate, Data transfer rate
TB/s
(terabyte per second)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
Tb [TiB]
(terabyte [tebibyte])
Data Storage and Transmission, Computer storage
tce
(tonne of coal equivalent)
Coal Energy Equivalent, Energy and Work
t/day
(tonne per day)
Metric, Flow rate by mass
Apothecaries, Capacity and volume
Apothecaries, Capacity and volume
Cooking (Australian), Capacity and volume
Cooking (International), Capacity and volume
Cooking (U.S.), Capacity and volume
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
tebibyte per second
(TiB/s)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
Transfer Rate per Different Time Units (older, 1024-based), Data transfer rate
Atmosphere, Stress and Pressure
tera
(T)
Metric Prefixes, Franctions and Percent
terabit per second
(Tbps)
Basic Units of Data Transfer Rate, Data transfer rate
terabit [tebibit]
(Tbit [Tibit])
Data Storage and Transmission, Computer storage
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
terabyte per second
(TB/s)
Byte-based Transfer Rate Units (current, 1000-based), Data transfer rate
Transfer Rate per Different Time Units (current, 1000-based), Data transfer rate
terabyte [tebibyte]
(Tb [TiB])
Data Storage and Transmission, Computer storage
Other Radix Numerals, Roman numbers, Hex, Octal and more
Ancient Roman, Historical weights
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
th
(thou)
British Imperial Measure before 1963, Distance and Length
Decimal numbers, Roman numbers, Hex, Octal and more
Thai units, Capacity and volume
Thai units, Capacity and volume
British and American, Energy and Work
thou
(th)
British Imperial Measure before 1963, Distance and Length
t/hour
(tonne per hour)
Metric, Flow rate by mass
Quantity Units, Franctions and Percent
thousand board-feet
(mfbm, mbdft, mbf)
Lumber measure, Capacity and volume
thousand of circular mils
(kcmil, MCM)
Units for Measuring Wire Gauges, Area
Natural Gas Energy Equivalent, Energy and Work
Natural Gas Energy Equivalent, Energy and Work
British and U.S. (Imperial system), Stress and Pressure
TiB/s
(tebibyte per second)
Byte-based Transfer Rate Units (older, 1024-based), Data transfer rate
English wine cask units, Capacity and volume
time per 500 meters (500m split in rowing)
(HH:MM:SS)
Pace (Various Sports), Speed
time per kilometer
(HH:MM:SS)
Pace (Various Sports), Speed
time per mile
(HH:MM:SS)
Pace (Various Sports), Speed
tithe, one fifth or .2
(1/5)
Fractions, Franctions and Percent
t/min
(tonne per minute)
Metric, Flow rate by mass
toe
(tonne of oil equivalent)
Oil Energy Equivalent, Energy and Work
Old Portuguese, Historical Lengths
Old French, Historical Lengths
Indian units (Akbar system), Mass and weight
Old Portuguese Liquid Measure, Historical Units of Capacity
Old Portuguese, Historical weights
Old Spanish, Historical weights
Tongan Paʻanga
(TOP)
Currencies of Australia and Oceania, Currency
Ship tonnage measurements, Capacity and volume
Metric, Historical weights
Metric, Mass and weight
Gravitational Metric System, Force
Metric, Torque
Metric, Torque
TNT Energy Equivalent, Energy and Work
tonne of coal equivalent
(tce)
Coal Energy Equivalent, Energy and Work
tonne of oil equivalent
(toe)
Oil Energy Equivalent, Energy and Work
Coal Energy Equivalent, Energy and Work
tonne per cubic meter
(t/m³)
Metric System, Density
tonne per day
(t/day)
Metric, Flow rate by mass
tonne per hour
(t/hour)
Metric, Flow rate by mass
tonne per minute
(t/min)
Metric, Flow rate by mass
tonne per second
(t/s)
Metric, Flow rate by mass
tonne per year
(t/year)
Metric, Flow rate by mass
TNT Energy Equivalent, Energy and Work
British and U.S. (Imperial system), Stress and Pressure
British and U.S. (Imperial system), Stress and Pressure
Japanese, Capacity and volume
Decimal numbers, Roman numbers, Hex, Octal and more
Ancient Roman, Historical weights
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
South American Currencies, Currency
Number of Performers, Franctions and Percent
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Ancient Greek (Aeginetic standard), Historical weights
Ancient Greek (Attic/Eubolic standard), Historical weights
Astronomical, Time
t/s
(tonne per second)
Metric, Flow rate by mass
Hong Kong units, Distance and Length
Old Swedish, Historical Lengths
Old Swedish, Historical Lengths
English wine cask units, Capacity and volume
Tunisian Dinar
(TND)
African Curriencies, Currency
Turkish Lira
(TRY)
Middle East Currencies, Currency
Historical Units Still In Use Today, Area
Turkmenistani Manat
(TMT)
Asian Currencies, Currency
Old Swedish, Historical Lengths
Typographical (British and U.S. - ATA system), Distance and Length
t/year
(tonne per year)
Metric, Flow rate by mass
U
U
(rack unit)
Computer Equipment, Distance and Length
Ugandan Shilling
(UGX)
African Curriencies, Currency
Ancient Roman, Historical Units of Area
Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge
Ukrainian Hryvnia
(UAH)
European Currencies, Currency
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Ancient Roman, Historical Lengths
Ancient Roman, Historical weights
Other Radix Numerals, Roman numbers, Hex, Octal and more
Middle East Currencies, Currency
United States Dollar, $
(USD)
Major World Currencies, Currency
unit, point
(1)
Quantity Units, Franctions and Percent
Old Austrian, Historical weights
Old German (Prussian), Historical weights
Ancient Roman Measure (Liquid and Dry), Historical Units of Capacity
Uruguayan Peso
(UYU)
South American Currencies, Currency
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
U.S. brewery cask units, Capacity and volume
U.S. brewery cask units, Capacity and volume
U.S. brewery cask units, Capacity and volume
U.S. brewery cask units, Capacity and volume
US Nautical Measure, Distance and Length
Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge
US fathom
(fath)
US Nautical Measure, Distance and Length
U.S. gallon per day
(gal/day)
U.S. and British Imperial, Flow rate by volume
U.S. gallon per hour
(gph)
U.S. and British Imperial, Flow rate by volume
U.S. gallon per minute
(gpm)
U.S. and British Imperial, Flow rate by volume
U.S. gallon per second
(gps)
U.S. and British Imperial, Flow rate by volume
U.S. gallon per year
(gal/year)
U.S. and British Imperial, Flow rate by volume
US Nautical Measure, Distance and Length
Knitting Needle and Crochet Hook Sizes, Wire and Needle Gauge
U.S. refrigeration ton
(USRT)
British and American, Power
Uzbekistan Som
(UZS)
Asian Currencies, Currency
V
Computer Connection Speed, Data transfer rate
Vanuatu Vatu
(VUV)
Currencies of Australia and Oceania, Currency
Old Portuguese, Historical Lengths
Old Spanish, Historical Lengths
Old Spanish, Historical Units of Area
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Spanish Customary Units Still In Use Today, Distance and Length
Old Portuguese, Historical Units of Area
Old Russian Liquid Measure, Historical Units of Capacity
Old Russian Dry Measure, Historical Units of Capacity
South American Currencies, Currency
Old Russian, Historical Lengths
Old Russian, Historical Lengths
Old Austrian, Historical weights
Vietnamese Dong
(VND)
Asian Currencies, Currency
Old Russian Liquid Measure, Historical Units of Capacity
Old Russian Liquid Measure, Historical Units of Capacity
volt-ampere
(VA)
International System (SI), Power
W
watt hour
(W*h)
Common Units, Energy and Work
watt second
(W*s)
Common Units, Energy and Work
Thai units, Distance and Length
W*h
(watt hour)
Common Units, Energy and Work
Ring Sizes in the United Kingdom, Ireland, Australia, New Zealand, and South Africa (Wheat Sheaf), Ring size
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Computer Connection Speed, Data transfer rate
Apothecaries, Capacity and volume
W*s
(watt second)
Common Units, Energy and Work
X
Ancient Greek (Attic) Liquid Measure, Historical Units of Capacity
Ancient Greeek (Attic) Dry Measure, Historical Units of Capacity
X st Y lbs Z oz
(stone, pounds, and ounces)
Avoirdupois (U.S. / British), Mass and weight
x'y"
(feet and inches)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
Y
y
(yocto)
Metric Prefixes, Franctions and Percent
Y
(yotta)
Metric Prefixes, Franctions and Percent
yard
(yd)
The American System of Measures (US Customary Units), Historical Lengths
yard
(yd)
British Imperial Measure before 1963, Distance and Length
yard
(yd)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
yd
(yard)
The American System of Measures (US Customary Units), Historical Lengths
yd
(yard)
British Imperial Measure before 1963, Distance and Length
yd
(yard)
The American System (US Customary Units) and British Imperial Measures, Distance and Length
yd²
(square yard)
British (Imperial) And U.S. System, Historical Units of Area
yd³
(cubic yard)
British and U.S. derivatives of length units, Capacity and volume
Yemeni Rial
(YER)
Middle East Currencies, Currency
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
Thai units, Capacity and volume
yocto
(y)
Metric Prefixes, Franctions and Percent
yotta
(Y)
Metric Prefixes, Franctions and Percent
Thai units, Distance and Length
Old Spanish, Historical Units of Area
Z
z
(zepto)
Metric Prefixes, Franctions and Percent
z
(red shift)
Astronomical, Distance and Length
Z
(zetta)
Metric Prefixes, Franctions and Percent
Zambian Kwacha
(ZMW)
African Curriencies, Currency
Old Austrian, Historical weights
Old German (Prussian), Historical weights
zepto
(z)
Metric Prefixes, Franctions and Percent
zetta
(Z)
Metric Prefixes, Franctions and Percent
Chinese units of 1915, Distance and Length
Chinese units of 1930, Distance and Length
Zimbabwean Dollar
(ZWL)
African Curriencies, Currency
Old Austrian, Historical Lengths
Old German (Prussian), Historical Lengths
Old Russian, Historical weights