In physics, a

**foot-pound**is the U.S. customary unit of mechanical work.

To calculate a foot-pound, you can use this formula,

**W = F × D**

**W**is work (in foot-pounds),

**F**is force (in pounds), and

**D\**is distance (in feet).

Doing 550 foot-pounds of work on an object in one second is equal to a horsepower, the U.S. customary unit of power.