# Foot-pound force

Foot-pound force

The foot-pound force, or simply foot-pound (symbol: ft·lbf or ft·lb) is a unit of work or energy (a scalar) and also a unit of torque (a vector).

There is actually no such thing as "foot-pounds". The correct term is "pound-feet".Foot-pounds is still a very common term.

Unit of energy

One pound-foot is the amount of energy expended when a force of one pound acts through a distance of one foot along the direction of the force.

1 pound-foot is equivalent to:
* 1.3558179483314004 joules (exactly)
* 13558179.483314004 ergs (exactly)
* 12 inch-pound force (exactly)
* 192 inch-ounce force (exactly)
* 0.001285067 British Thermal Unit
* 0.323832 calorie
* 0.000323832 "food calorie," also called kcal or Calorie (capitalized)
* 32.174049 pound-foots
* 1.45688 x10^-5 mile-stones

Related units of power

The foot-pound force per minute (ft·lbf/min), foot-pound force per second (ft·lbf/s), and horsepower are units of power derived from the foot-pound force.

* 1 watt ≈ 44.25372896 ft·lbf/min
* 1 horsepower (mechanical) = 33000 ft·lbf/min = 550 lb-ftf/s

Unit of torque

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

1 pound-foot is equivalent to:
* 1.3558179483314004 newton meter (exactly)

* Poundal
* Slug (mass)
* Units of energy
* Conversion of units

Wikimedia Foundation. 2010.

### Look at other dictionaries:

• foot-pound force — footˈ pound or foot pound force noun The energy needed to raise a mass of one pound through the height of one foot in normal gravity • • • Main Entry: ↑foot …   Useful english dictionary

• Foot-pound force — Pied livre Le pied livre force ou pied livre (foot pound force ou foot pound en anglais, symbole : ft·lbf or ft·lb) est une unité de mesure anglo saxonne de travail ou d énergie. Elle correspond au travail développé par une force de une… …   Wikipédia en Français

• foot-pound — noun a unit of work equal to a force of one pound moving through a distance of one foot • Hypernyms: ↑work unit, ↑heat unit, ↑energy unit • Part Holonyms: ↑foot ton * * * ˈ ̷ ̷| ̷ ̷ noun (plural …   Useful english dictionary

• Foot-pound (energy) — Not to be confused with Pound foot (torque) or Foot poundal. The foot pound force, or simply foot pound (symbol: ft lbf or ft lb) is a unit of work or energy in the English Engineering Units and Gravitational Systems in United States… …   Wikipedia

• Foot-pound — Pied livre Le pied livre force ou pied livre (foot pound force ou foot pound en anglais, symbole : ft·lbf or ft·lb) est une unité de mesure anglo saxonne de travail ou d énergie. Elle correspond au travail développé par une force de une… …   Wikipédia en Français

• foot-pound — /foot pownd /, n. Physics. a foot pound second unit of work or energy, equal to the work done by a force of one pound when its point of application moves through a distance of one foot in the direction of the force. Abbr.: ft lb [1840 50] * * * …   Universalium

• Foot pound — (Mech.) A unit of energy, or work, being equal to the work done in raising one pound avoirdupois against the force of gravity through a vertical distance of one foot. [1913 Webster] …   The Collaborative International Dictionary of English

• foot-pound|al — «FUT POWN duhl», noun. a unit of work or energy, equivalent to the work done by a force of one poundal acting through a distance of one foot. It is equal to a foot pound divided by the acceleration due to gravity, or about 32.2 feet per second… …   Useful english dictionary

• Pound (force) — Klbf redirects here. For the airport in North Platte, Nebraska, assigned the ICAO code KLBF, see North Platte Regional Airport. For the unit of mass, see Pound (mass). For basis weight of paper, see Paper density. The pound force (symbol: lb, lbf …   Wikipedia

• Pound-force — This article deals with the unit of force. For the unit of mass see Pound (mass). The pound force or simply pound (abbreviations: lb, lbf, or lbf) is a unit of force. Definitions The pound force is approximately equal to the gravitational force… …   Wikipedia