Ounces per gallon (US) to pounds per cup (US) conversion calculator shown above calculates how many pounds per cup (US) are in 'X' ounces per gallon (US) (where 'X' is the number of ounces per gallon (US) to convert to pounds per cup (US)). In order to convert a value from ounces per gallon (US) to pounds per cup (US) (from oz/gal to lb/cup) type the number of oz/gal to be converted to lb/cup and then click on the 'convert' button.