Rai (ไร่). Conversion Chart / Area Converter, Thai Units

Rai (ไร่). Conversion Chart

This converter features contemporary units of area. There is also a special converter for historical units of area you might want to visit for ancient, medieval and other old units that are no longer used.

Conversion settings:

Significant figures: ? Do you want rounded off figures or
scientifically precise ones?
For everyday conversions we recommend
choosing 3 or 4 significant digits.
Digit groups separator: ?
Choose how you want to have your
digit groups separated:
1234567.89 none
1 234 567.89 space
1,234,567.89 comma
1.234.567,89 point

1234567.89	none
1 234 567.89	space
1,234,567.89	comma
1.234.567,89	point

Conversion is easy:

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This converter is very easy. Really.

1	This is a conversion chart for rai (ไร่) (Thai units). To switch the unit simply find the one you want on the page and click it. You can also go to the universal conversion page.
2	Enter the value you want to convert (rai (ไร่)). Then click the Convert Me button. Your value gets instantly converted to all other units on the page.
3	Now find the unit you want and get the conversion result next to it. It's your answer.
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Enter the value of your unit (rai (ไร่)).
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Your value (rai (ไร่)):

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Metric

rai (ไร่) to square kilometer (km²)
rai (ไร่) to hectare
rai (ไร่) to decare
rai (ไร่) to are (a)

rai (ไร่) to square meter (m²)
rai (ไร่) to square decimeter (dm²)
rai (ไร่) to square centimeter (cm²)
rai (ไร่) to square millimeter (mm²)
rai (ไร่) to barn (b)

Units: square kilometer (km²) / hectare / decare / are (a) / square meter (m²) / square decimeter (dm²) / square centimeter (cm²) / square millimeter (mm²) / barn (b)

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British (Imperial) And U.S. System

rai (ไร่) to township
rai (ไร่) to square mile
rai (ไร่) to homestead
rai (ไร่) to acre
rai (ไร่) to rood

rai (ไร่) to square rod
rai (ไร่) to perch
rai (ไร่) to square yard (yd²)
rai (ไร่) to square foot (ft²)
rai (ไร่) to square inch (in²)
rai (ไร่) to square mil (th²)

Units: township / square mile / homestead / acre / rood / square rod / perch / square yard (yd²) / square foot (ft²) / square inch (in²) / square mil (th²)

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Historical Units Still In Use Today

Some older units managed to survive and are still used nowadays. They were rounded up in accordance to current measurements (either metric or imperial) while keeping their old names. For each of the units below we specify the country where it is in use.

rai (ไร่) to dulum (дулум) of Bosnia and Herzegovina and Serbia
rai (ไร่) to dynym or dylym of Albania
rai (ไร่) to donum of Cyprus
rai (ไร่) to skales (σκάλες) of Cyprus
rai (ไร่) to stremma (στρέμμα) of Greece
rai (ไร่) to Turkish stremma of Greece
rai (ไร่) to dunam of Iraq
rai (ไร่) to dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon
rai (ไร่) to old (pre 1928) dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon
rai (ไร่) to feddan (فدّان‎) of Egypt, Sudan, Syria, Sultanate of Oman
rai (ไร่) to kirat (قيراط) of Egypt
rai (ไร่) to manzana of Argentina
rai (ไร่) to manzana of Belize
rai (ไร่) to manzana of Costa Rica

rai (ไร่) to manzana of Guatemala
rai (ไร่) to manzana of Honduras
rai (ไร่) to manzana of Nicaragua
rai (ไร่) to cuadra of Argentina
rai (ไร่) to cuadra of Chile
rai (ไร่) to cuadra of Ecuador
rai (ไร่) to cuadra of Paraguay
rai (ไร่) to cuadra of Peru
rai (ไร่) to cuadra of Uruguay
rai (ไร่) to square vara of Panama and Columbia
rai (ไร่) to square vara of Chile, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Peru, São Tomé and Principe, Venezuela
rai (ไร่) to square vara of Cuba
rai (ไร่) to square vara of Argentina, Paraguay, Uruguay
rai (ไร่) to square vara of Brazil

Units: dulum (дулум) of Bosnia and Herzegovina and Serbia / dynym or dylym of Albania / donum of Cyprus / skales (σκάλες) of Cyprus / stremma (στρέμμα) of Greece / Turkish stremma of Greece / dunam of Iraq / dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon / old (pre 1928) dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon / feddan (فدّان‎) of Egypt, Sudan, Syria, Sultanate of Oman / kirat (قيراط) of Egypt / manzana of Argentina / manzana of Belize / manzana of Costa Rica / manzana of Guatemala / manzana of Honduras / manzana of Nicaragua / cuadra of Argentina / cuadra of Chile / cuadra of Ecuador / cuadra of Paraguay / cuadra of Peru / cuadra of Uruguay / square vara of Panama and Columbia / square vara of Chile, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Peru, São Tomé and Principe, Venezuela / square vara of Cuba / square vara of Argentina, Paraguay, Uruguay / square vara of Brazil

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Units for Measuring Wire Gauges

These units are referring to the area of a wire with a circular cross section. One circular mil denote an area, equal to the area of a circle with a diameter of one mil.

You can find a comprehensive list of wire gauge units on our special wire gauge conversion page.

rai (ไร่) to circular inch

rai (ไร่) to thousand of circular mils (kcmil, MCM)
rai (ไร่) to circular mil (cmil)

Units: circular inch / thousand of circular mils (kcmil, MCM) / circular mil (cmil)

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Japanese

rai (ไร่) to shaku (勺)
rai (ไร่) to go (合)
rai (ไร่) to jo (畳)
rai (ไร่) to tsubo (坪)

rai (ไร่) to bu (歩)
rai (ไร่) to se (畝)
rai (ไร่) to tan (段, 反)
rai (ไร่) to cho (町, 町歩)

Units: shaku (勺) / go (合) / jo (畳) / tsubo (坪) / bu (歩) / se (畝) / tan (段, 反) / cho (町, 町歩)

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Chinese units of 1930

rai (ไร่) to qing (頃 or 顷)
rai (ไร่) to mu (畝 or 亩)
rai (ไร่) to fen (市分)
rai (ไร่) to fang zhang (方丈) (zhang²)

rai (ไร่) to li (釐 or 厘)
rai (ไร่) to hao (毫)
rai (ไร่) to fang chi (方尺) (chi²)
rai (ไร่) to fang cun (方寸) (cun²)

Units: qing (頃 or 顷) / mu (畝 or 亩) / fen (市分) / fang zhang (方丈) (zhang²) / li (釐 or 厘) / hao (毫) / fang chi (方尺) (chi²) / fang cun (方寸) (cun²)

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Chinese units of 1915

rai (ไร่) to qing (頃 or 顷)
rai (ไร่) to mu (畝 or 亩)
rai (ไร่) to fen (分)
rai (ไร่) to fang zhang (方丈) (zhang²)

rai (ไร่) to li (釐 or 厘)
rai (ไร่) to hao (毫)
rai (ไร่) to fang chi (方尺) (chi²)
rai (ไร่) to fang cun (方寸) (cun²)

Units: qing (頃 or 顷) / mu (畝 or 亩) / fen (分) / fang zhang (方丈) (zhang²) / li (釐 or 厘) / hao (毫) / fang chi (方尺) (chi²) / fang cun (方寸) (cun²)

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Thai units

Some of these units are still in use even though metric system was formally established in 1923. Before the metrication the old units were standartied to exact metric values.

rai (ไร่) to ngan (งาน)
rai (ไร่) to tarang wah (ตารางวา, square wa)

Units: / ngan (งาน) / tarang wah (ตารางวา, square wa)

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Natural units

In physics, natural units are physical units of measurement based only on universal physical constants. The origin of their definition comes only from properties of nature and not from any human construct.

rai (ไร่) to Planck area (L²)

Units: Planck area (L²)

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Rai (ไร่). Measurements Converter