Foot-pound (energy)

Not to be confused with Pound-foot (torque) or Foot-poundal.

The foot-pound force (symbol: ft·lb_f), or simply foot-pound (symbol: ft·lb), is a unit of energy and also a unit of torque. By definition it is one foot times one pound-force.

Unit of energy

As a unit of energy, one foot-pound is the energy it takes to push with one pound-force one pound for a distance of one foot.

1 foot-pound is equivalent to:

• 1.3558179483314004 joules (exactly)
• 13558179.483314004 ergs (exactly)
• ~0.001285067 British Thermal Unit IT
• ~0.323832 calorie IT (cal_IT)
• ~0.000323832 "food calorie" (kcal or Cal)
• ~32.174049 foot-poundals (ft pdl)

Unit of torque

As a unit of torque, one foot-pound is the torque created by one pound force acting at a perpendicular distance of one foot from a pivot point.

1 foot-pound is equivalent to:

• 1.3558179483314004 newton metre (exactly)