Foot-pounds to Calories converter

To convert foot-pounds to calories, enter the value in the first field. The result in calories is calculated automatically using the exact conversion factor.

1 ft·lbf ≈ 0.32404826681 cal
1 cal ≈ 3.08596003258 ft·lbf

Formula: cal ≈ ft·lbf × 0.32404826681
ft·lbf ≈ cal × 3.08596003258

Definitions: 1 ft·lbf = 1.35581794833 J; 1 cal = 4.184 J

The foot-pound (ft·lbf) is the work done by a force of one pound-force over a distance of one foot, about 1.356 joules. It is used in the United States for the muzzle energy of ammunition and for impact energy, and it should not be confused with the pound-foot, a unit of torque.

The calorie (cal) here is the thermochemical calorie, exactly 4.184 joules, roughly the energy needed to raise one gram of water by one degree Celsius. It is used in chemistry and physics and should not be confused with the food Calorie, which is a kilocalorie.

See the conversion table with commonly used values, handy for quick reference or study.