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Foot-pound force
 
 
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The foot-pound force, or simply foot-pound (symbol: ft·lbf or ft·lb) is a unit of work
Mechanical work

In physics, mechanical work is the amount of energy transferred by a force acting through a distance. Like energy, it is a scalar quantity, with SI of joules....
 or energy
Energy

In physics, energy is a scalar physical quantity that describes the amount of Work_ that can be performed by a force. Energy is an attribute of objects and systems that is subject to a conservation law....
 (a scalar
Scalar (physics)

In physics, a scalar is a simple physical quantity that is not changed by coordinate system rotations or translations , or by Lorentz transformations or space-time translations ....
) and also a unit of torque
Torque

Torque is the tendency of a force to rotate an object about an axis . Just as a force is a push or a pull, a torque can be thought of as a twist....
 (a vector).

foot-pound force is the amount of energy expended when a force of one pound
Pound-force

The pound-force or simply pound is a Units of measurement of force....
 acts through a distance of one foot along the direction of the force.

1 foot-pound force is equivalent to:

foot-pound force per minute (ft·lbf/min), foot-pound force per second (ft·lbf/s), and horsepower
Horsepower

Horsepower is the name of several non-International System of Units units of power . It was originally defined to allow the output of steam engines to be measured and compared with the power output of draft horses....
 are units of power derived from the foot-pound force.



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.






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Encyclopedia


The foot-pound force, or simply foot-pound (symbol: ft·lbf or ft·lb) is a unit of work
Mechanical work

In physics, mechanical work is the amount of energy transferred by a force acting through a distance. Like energy, it is a scalar quantity, with SI of joules....
 or energy
Energy

In physics, energy is a scalar physical quantity that describes the amount of Work_ that can be performed by a force. Energy is an attribute of objects and systems that is subject to a conservation law....
 (a scalar
Scalar (physics)

In physics, a scalar is a simple physical quantity that is not changed by coordinate system rotations or translations , or by Lorentz transformations or space-time translations ....
) and also a unit of torque
Torque

Torque is the tendency of a force to rotate an object about an axis . Just as a force is a push or a pull, a torque can be thought of as a twist....
 (a vector).

Unit of energy

One foot-pound force is the amount of energy expended when a force of one pound
Pound-force

The pound-force or simply pound is a Units of measurement of force....
 acts through a distance of one foot along the direction of the force.

1 foot-pound force is equivalent to:
  • 1.3558179483314004 joule
    Joule

    The joule is the SI derived unit of energy in the International System of Units. It is defined as:One joule is the amount of energy required to perform the following actions:...
    s (exactly)
  • 13558179.483314004 erg
    Erg

    An erg is the unit of energy and mechanical work in the Centimetre gram second system of units system of Units of measurements, symbol "erg"....
    s (exactly)
  • 12 inch-pound force (exactly)
  • 192 inch-ounce force (exactly)
  • 0.001285067 British Thermal Unit
    British thermal unit

    The British thermal unit is a unit of energy used in the power, steam generation, heating and air conditioning industries. In scientific contexts the BTU has largely been replaced by the SI unit of energy, the joule , though it may be used as a measure of agricultural energy production ....
  • 0.323832 calorie
    Calorie

    The calorie is a pre-SI metric system unit of energy. The unit was first defined by Professor Nicolas Cl?ment in 1824 as a unit of heat. This definition entered French and English dictionaries between 1841 and 1867....
  • 0.000323832 "food calorie," also called kcal or Calorie (capitalized)


Related units of power

The foot-pound force per minute (ft·lbf/min), foot-pound force per second (ft·lbf/s), and horsepower
Horsepower

Horsepower is the name of several non-International System of Units units of power . It was originally defined to allow the output of steam engines to be measured and compared with the power output of draft horses....
 are units of power derived from the foot-pound force.

  • 1 watt
    WATT

    WATT is a radio station broadcasting a News radio-Talk radio-Sports radio format. Licensed to Cadillac, Michigan, it first began broadcasting in 1945....
     ˜ 44.25372896 ft·lbf/min
  • 1 horsepower
    Horsepower

    Horsepower is the name of several non-International System of Units units of power . It was originally defined to allow the output of steam engines to be measured and compared with the power output of draft horses....
     (mechanical) = 33000 ft·lbf/min = 550 ft·lbf/s


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. When used to describe the output of an automobile engine, this unit is usually called the pound-foot (lb-ft).

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


See also

  • Poundal
    Poundal

    The poundal is a non-SI Units of measurement of force. It is a part of the foot-pound-second system of units, a coherent subsystem of English units introduced in 1879, and one of several specialized subsystems of mechanical units used as aids in calculations....
  • Slug (mass)
    Slug (mass)

    The slug is an English unit of mass. It is a mass that accelerates by 1 ft/s? when a force of one pound-force is exerted on it. Therefore a slug has a mass of 32.17405 pounds or 14.5939 kg....
  • Units of energy
    Units of energy

    Because energy is defined via Mechanical work, the SI unit for energy is the same as the unit of work – the joule , named in honour of James Prescott Joule and his experiments on the mechanical equivalent of heat....
  • Conversion of units
    Conversion of units

    Conversion of units refers to conversion factors between different units of measurement for the same quantity....