Barrels (US fluid) to cubic feet converter above calculates how many cubic feet are in 'X' barrels (US fluid) (where 'X' is the number of barrels (US fluid) to convert to cubic feet). In order to convert a value from barrels (US fluid) to cubic feet (from fl bl to cu ft) simply type the number of fl bl to be converted to cu ft and then click on the 'convert' button.