Lb-ft to Nm Torque Conversion Table 0-100 (Pound Foot to Newton Meters)

Pound-foot (torque)

A pound-foot (lbf⋅ft) is a unit of torque representing one pound of force acting at a perpendicular distance of one foot from a pivot point. Conversely, one pound-foot is the moment about an axis that applies one pound-force at a radius of one foot.

Pound Foot to Newton Metres Conversion Formula

The value in SI units is given by multiplying the following approximate factors:

One pound (force) = 4.448 222 newtons

One foot = 0.3048 m

This gives the conversion factor: One pound-foot = 1.35582 newton metres.

The name "pound-foot", intended to minimize confusion with the foot-pound as a unit of work, was apparently first proposed by British physicist Arthur Mason Worthington. Despite this, in practice torque units are commonly called the foot-pound (denoted as either lb-ft or ft-lb) or the inch-pound (denoted as in-lb). Practitioners depend on context and the hyphenated abbreviations to know that these refer to neither energy nor moment of mass (as the symbol ft-lb rather than lbf-ft would imply). Similarly, an inch-pound (or pound-inch) is the torque of one pound of force applied to one inch of distance from the pivot, and is equal to 1⁄12 lbf⋅ft (0.1129848 N⋅m). It is commonly used on torque wrenches and torque screwdrivers for setting specific fastener tension.

Lb-ft to Nm Torque Conversion Table 0-100 (Pound Foot to Newton Meters)

 

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