Foot-pounds force to megajoules converter above calculates how many megajoules are in 'X' foot-pounds force (where 'X' is the number of foot-pounds force to convert to megajoules). In order to convert a value from foot-pounds force to megajoules (from ft lbf to MJ) type the number of ft lbf to be converted to MJ and then click on the 'convert' button.