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