4220 watt hours equals 3,630.98 calories.
Convert 4220 watt hours into joules, kilojoules, megajoules, newton meters, foot pounds, kilowatt hours, megawatt hours, mega electrons, etc...
Convert 3631 calories into joules, kilojoules, megajoules, newton meters, foot pounds, kilowatt hours, megawatt hours, mega electrons, etc...