Barrels (oil) to cubic meters converter on this page calculates how many cubic meters are in 'X' barrels (oil) (where 'X' is the number of barrels (oil) to convert to cubic meters). In order to convert a value from barrels (oil) to cubic meters (from bbl to m³) simply type the number of bbl to be converted to m³ and then click on the 'convert' button.