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