Ounces per liter to grams per cup conversion calculator above calculates how many grams per cup are in 'X' ounces per liter (where 'X' is the number of ounces per liter to convert to grams per cup). In order to convert a value from ounces per liter to grams per cup (from oz/L to g/cup) type the number of oz/L to be converted to g/cup and then click on the 'convert' button.