This conversion page features historical units (ancient, medieval, etc.) that are mostly no longer in use. If you are looking for units of weight that are used today, including many national units of various countries, please
switch to our main weight and mass conversion page.
» show »
» hide »
Ancient Roman
The base Roman unit of weight was libra (Roman pound) that contained 12 uncias. Modern estimates of the libra ranges from 322 to 329 grams with 328.9 grams an accepted figure. The base unit for coins was as that used to be 12 uncias initially and then gradually reduced to only half an uncia. Another silver coin was called denarius equal to 10 asses (from Latin dēnī - containing ten), it was later recalibrated to contain 16 asses or four sestertii. A literal meaning of each unit is given in parentheses.
|
hemiobol (ἡμιωβόλιον, ½ obol) to libra (Roman pound, balance) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to deunx (11⁄12 libra, less a twelfth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to dextans (10⁄12 libra, less a sixth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to dodrans (9⁄12 libra, less a fourth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to bes (8⁄12 libra, two of an as) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to septunx (7⁄12 libra, seven-twelfths) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to semis (6⁄12 libra, a half) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to quincunx (5⁄12 libra, five-twelfths) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to triens (4⁄12 libra, a third) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to quadrans (1⁄4 libra, a fourth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to teruncius (3⁄12 libra, triple twelfth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to sextans (2⁄12 libra, a sixth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to sescuncia (1⁄8 libra, 1½ twelfths) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to uncia (Roman ounce, a twelfth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to semuncia (½ uncia, half-twelfth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to duella (⅓ uncia, little double [sixths]) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to sicilicus (¼ uncia, little sickle) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to sextula (1⁄6 uncia, little sixth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to drachma (1⁄8 uncia, from Greek unit δραχμή) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to semisextula (1⁄12 uncia, half-little sixth) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to scrupulum (1⁄24 uncia, small pebble) | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to obolus (1⁄48 uncia, from Greek unit ὀβολός 'metal spit') | |
|
hemiobol (ἡμιωβόλιον, ½ obol) to siliqua (1⁄144 uncia, carat, carob seed) | |
Units:
libra (Roman pound, balance)
/
deunx (11⁄12 libra, less a twelfth)
/
dextans (10⁄12 libra, less a sixth)
/
dodrans (9⁄12 libra, less a fourth)
/
bes (8⁄12 libra, two of an as)
/
septunx (7⁄12 libra, seven-twelfths)
/
semis (6⁄12 libra, a half)
/
quincunx (5⁄12 libra, five-twelfths)
/
triens (4⁄12 libra, a third)
/
quadrans (1⁄4 libra, a fourth)
/
teruncius (3⁄12 libra, triple twelfth)
/
sextans (2⁄12 libra, a sixth)
/
sescuncia (1⁄8 libra, 1½ twelfths)
/
uncia (Roman ounce, a twelfth)
/
semuncia (½ uncia, half-twelfth)
/
duella (⅓ uncia, little double [sixths])
/
sicilicus (¼ uncia, little sickle)
/
sextula (1⁄6 uncia, little sixth)
/
drachma (1⁄8 uncia, from Greek unit δραχμή)
/
semisextula (1⁄12 uncia, half-little sixth)
/
scrupulum (1⁄24 uncia, small pebble)
/
obolus (1⁄48 uncia, from Greek unit ὀβολός 'metal spit')
/
siliqua (1⁄144 uncia, carat, carob seed)
