Liter-atmosphere to megajoules converter above calculates how many megajoules are in 'X' liter-atmosphere (where 'X' is the number of liter-atmosphere to convert to megajoules). In order to convert a value from liter-atmosphere to megajoules (from L atm to MJ) type the number of L atm to be converted to MJ and then click on the 'convert' button.