Ounces per gallon (US) to pounds per cubic inch converter on this page calculates how many pounds per cubic inch are in 'X' ounces per gallon (US) (where 'X' is the number of ounces per gallon (US) to convert to pounds per cubic inch). In order to convert a value from ounces per gallon (US) to pounds per cubic inch (from oz/gal to lb/cu in) just type the number of oz/gal to be converted to lb/cu in and then click on the 'convert' button.