Volume |
What it was |
Other Roman Measurement Equivalent |
English/Metric Equivalent |
Amphora (pl. amphorae) |
Liquid volume measure; cubic Roman Foot; derived from the term for the earthenware vessels used to store and transport liquids |
8 congii |
apx 6.8 gals or 25.79 liters |
Congius (pl. congii) |
Liquid volume measure |
12 heminae |
apx .85 gals or 3.22 liters |
Sextarius (pl. sextarii) |
Liquid volume measure |
2 heminae |
apx 1.14 pint or .546 liters |
Hemina (pl. heminae) |
Liquid volume measure |
|
apx .57 pints or .273 liters |
Modius (pl. modii) |
Dry volume measure |
|
apx 1 peck |
Liquid volume measure |
16 sextarii |
2.4 gals or 8.732 liters |
Ligula ( pl. ligulae) or cochlear ("spoonful"; pl. cochleara) or cochlea ("snail shell"; pl. cochleae) |
Smallest unit of liquid measure |
none |
.34 fluid ounce or 1.14 centiliters |
Weight |
What it was |
Other Roman Measurement Equivalent |
English/Metric Equivalent |
Libra ("balance"; pl. librae) or As |
Roman Pound |
12 unciae |
apx 3/4 pound or 335.9g |
Uncia (pl. uncia) |
Roman Ounce |
none |
apx 1 ounce or 28g |
Notes:
- The amphora was the unit used to determine the shipping weight for sea transport
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