Pound (force)
Earth's gravitational pull on a one-pound mass / From Wikipedia, the free encyclopedia
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The pound of force or pound-force (symbol: lbf,[1] sometimes lbf,[2]) is a unit of force used in some systems of measurement, including English Engineering units[lower-alpha 1] and the foot–pound–second system.[3]
Earth's gravitational pull on a one-pound mass
| Pound-force | |
|---|---|
| Unit system | English Engineering units, British Gravitational System |
| Symbol | lbf |
| Conversions | |
| 1 lbf in ... | ... is equal to ... |
| SI units | 4.448222 N |
| CGS units | 444,822.2 dyn |
| Absolute English System | 32.17405 pdl |
Pound-force should not be confused with pound-mass (lb), often simply called pound, which is a unit of mass, nor should these be confused with foot-pound (ft⋅lbf), a unit of energy, or pound-foot (lbf⋅ft), a unit of torque.