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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.
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doppelzentner to libra (Roman pound, balance) | |
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doppelzentner to deunx (11⁄12 libra, less a twelfth) | |
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doppelzentner to dextans (10⁄12 libra, less a sixth) | |
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doppelzentner to dodrans (9⁄12 libra, less a fourth) | |
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doppelzentner to bes (8⁄12 libra, two of an as) | |
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doppelzentner to septunx (7⁄12 libra, seven-twelfths) | |
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doppelzentner to semis (6⁄12 libra, a half) | |
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doppelzentner to quincunx (5⁄12 libra, five-twelfths) | |
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doppelzentner to triens (4⁄12 libra, a third) | |
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doppelzentner to quadrans (1⁄4 libra, a fourth) | |
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doppelzentner to teruncius (3⁄12 libra, triple twelfth) | |
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doppelzentner to sextans (2⁄12 libra, a sixth) | |
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doppelzentner to sescuncia (1⁄8 libra, 1½ twelfths) | |
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doppelzentner to uncia (Roman ounce, a twelfth) | |
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doppelzentner to semuncia (½ uncia, half-twelfth) | |
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doppelzentner to duella (⅓ uncia, little double [sixths]) | |
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doppelzentner to sicilicus (¼ uncia, little sickle) | |
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doppelzentner to sextula (1⁄6 uncia, little sixth) | |
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doppelzentner to drachma (1⁄8 uncia, from Greek unit δραχμή) | |
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doppelzentner to semisextula (1⁄12 uncia, half-little sixth) | |
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doppelzentner to scrupulum (1⁄24 uncia, small pebble) | |
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doppelzentner to obolus (1⁄48 uncia, from Greek unit ὀβολός 'metal spit') | |
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doppelzentner to siliqua (1⁄144 uncia, carat, carob seed) | |
Units:
libra (Roman pound, balance)
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deunx (11⁄12 libra, less a twelfth)
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dextans (10⁄12 libra, less a sixth)
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dodrans (9⁄12 libra, less a fourth)
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bes (8⁄12 libra, two of an as)
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septunx (7⁄12 libra, seven-twelfths)
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semis (6⁄12 libra, a half)
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quincunx (5⁄12 libra, five-twelfths)
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triens (4⁄12 libra, a third)
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quadrans (1⁄4 libra, a fourth)
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teruncius (3⁄12 libra, triple twelfth)
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sextans (2⁄12 libra, a sixth)
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sescuncia (1⁄8 libra, 1½ twelfths)
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uncia (Roman ounce, a twelfth)
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semuncia (½ uncia, half-twelfth)
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duella (⅓ uncia, little double [sixths])
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sicilicus (¼ uncia, little sickle)
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sextula (1⁄6 uncia, little sixth)
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drachma (1⁄8 uncia, from Greek unit δραχμή)
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semisextula (1⁄12 uncia, half-little sixth)
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scrupulum (1⁄24 uncia, small pebble)
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obolus (1⁄48 uncia, from Greek unit ὀβολός 'metal spit')
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siliqua (1⁄144 uncia, carat, carob seed)
