Tons of oil equivalent to gigajoules converter on this page calculates how many gigajoules are in 'X' tons of oil equivalent (where 'X' is the number of tons of oil equivalent to convert to gigajoules). In order to convert a value from tons of oil equivalent to gigajoules (from TOE to GJ) just type the number of TOE to be converted to GJ and then click on the 'convert' button.