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