Megajoules to tons of coal equivalent conversion calculator shown above calculates how many tons of coal equivalent are in 'X' megajoules (where 'X' is the number of megajoules to convert to tons of coal equivalent). In order to convert a value from megajoules to tons of coal equivalent (from MJ to TCE) simply type the number of MJ to be converted to TCE and then click on the 'convert' button.