There are 48 ounces in 6 cups according to the U.S. system of measurement. In the British imperial system of measurement, there are 60 ounces in 6 cups. The imperial cup is not often used as a form of measurement, but it is equal to half an imperial pint.
A volume of 6 U.S. cups is equal to 1.42 liters, while a volume of 6 imperial cups is equal to 1.7 liters.
The word "cup" sometimes also refers to any small round drinking vessel, often one that is bowl-shaped with a handle. It derives from a late Latin word, "cuppa," which is an alteration of the Latin word "cupa," meaning a tub.