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