4227 watt hours equals 3,637 calories.
Convert 4227 watt hours into joules, kilojoules, megajoules, newton meters, foot pounds, kilowatt hours, megawatt hours, mega electrons, etc...
Convert 3637 calories into joules, kilojoules, megajoules, newton meters, foot pounds, kilowatt hours, megawatt hours, mega electrons, etc...