Barrels of oil equivalent to terajoules conversion calculator above calculates how many terajoules are in 'X' barrels of oil equivalent (where 'X' is the number of barrels of oil equivalent to convert to terajoules). In order to convert a value from barrels of oil equivalent to terajoules (from BOE to TJ) type the number of BOE to be converted to TJ and then click on the 'convert' button.