The foot-pound force, or simply foot-pound (symbol: ft·lb_f or ft·lb) is a unit of work or energy (a scalar).

Contents 1 Other units of energy 1.1 Related units of power 2 See also 3 References

[edit] Other units of energy

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

1 foot-pound force is equivalent to:

• 1.3558179483314 joules
• 13,558,179.483314 ergs
• 12 inch-pound force (exactly)
• 192 inch-ounce force (exactly)
• 0.001285067 British Thermal Units
• 0.323832 calories
• 0.000323832 "food calories," also called kcal or Calorie (capitalized)

[edit] Related units of power

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

• 1 watt ≈ 44.25372896 ft·lb_f/min
• 1 horsepower (mechanical) = 33,000 ft·lb_f/min = 550 ft·lb_f/s

Using the FPS (foot-pound-second) system of measurement a foot-pound is defined as the amount of work required to raise a weight of one pound a distance of one foot.

[edit] See also

• Pound-foot (torque)
• Poundal
• Slug (mass)
• Units of energy
• Conversion of units
• Torque tester

[edit] References

• "foot-pound." The Columbia Encyclopedia, Sixth Edition. 2008. Via Encyclopedia.com. Retrieved on 23 Sep 2009.

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