sextarius

Both liquid and dry measures were based on the sextarius.

There were however other measures in common use - for example the sextarius was two heminae.

It was one-fourth of the hemina and therefore one-eighth of the sextarius.

Blackspot threadfin, Polydactylus sextarius .

Some of the other units are likewise of Latin derivation, sester from sextarius, amber from amphora.

A loaf of bread cost roughly half a sestertius, and a sextarius ( 0.5 liter) of wine anywhere from less than half to more than 1 sestertius.

- All wine merchants who bring wine to the capital (Constantinopolis), except Cilicians, have to pay the Dardanelles officials 6 follis and 2 sextarius of wine.

Since the Romans themselves defined the sextarius as 1/48th of an amphora quadrantal, and the amphora quadrantal as one cubic foot, assuming a value of 296 mm for the Roman foot yields a theoretical value for the sextarius of about 540.3 ml, which falls comfortably within the accepted range.