BTU to Foot-pounds converter

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

1 BTU ≈ 778.169262266 ft·lbf
1 ft·lbf ≈ 0.00128506746346 BTU

Formula: ft·lbf ≈ BTU × 778.169262266
BTU ≈ ft·lbf × 0.00128506746346

Definitions: 1 BTU = 1055.05585262 J; 1 ft·lbf = 1.35581794833 J

The British thermal unit (BTU) here is the International Table BTU, about 1,055 joules, roughly the energy needed to raise one pound of water by one degree Fahrenheit. It is used in the United States for heating and cooling equipment, fuel content and natural gas.

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.

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