Grams per liter to ounces per gallon (US) converter on this page calculates how many ounces per gallon (US) are in 'X' grams per liter (where 'X' is the number of grams per liter to convert to ounces per gallon (US)). In order to convert a value from grams per liter to ounces per gallon (US) (from g/L to oz/gal) simply type the number of g/L to be converted to oz/gal and then click on the 'convert' button.