2491 foot pounds equals 0.81 calories.
Convert 2491 foot pounds into joules, kilojoules, megajoules, newton meters, watt hours, kilowatt hours, megawatt hours, mega electrons, etc...
Convert 1 calories into joules, kilojoules, megajoules, newton meters, watt hours, kilowatt hours, megawatt hours, mega electrons, etc...