Tera-electron volts to megajoules conversion calculator above calculates how many megajoules are in 'X' tera-electron volts (where 'X' is the number of tera-electron volts to convert to megajoules). In order to convert a value from tera-electron volts to megajoules (from TeV to MJ) just type the number of TeV to be converted to MJ and then click on the 'convert' button.