- a traditional Spanish unit of dry volume. The octavillo equals about 289 milliliters (a little more than a cup, in U.S. terminology). This is equivalent to about 17.64 cubic inches, 0.525 U.S. pint, or 0.5086 British Imperial pint. Since octavillo means "eighth," one would expect the octavillo to be 1/8 of some other unit, but this is not the case. There are 4 octavillos in a cuartillo, 16 in an almude, and 48 in a fanega.
Dictionary of units of measurement. 2015.