420 megajoules equals 100,382.41 calories.
Convert 420 megajoules into joules, kilojoules, newton meters, foot pounds, watt hours, kilowatt hours, megawatt hours, mega electrons, etc...
Convert 100383 calories into joules, kilojoules, newton meters, foot pounds, watt hours, kilowatt hours, megawatt hours, mega electrons, etc...