**Pound force** is a unit of measurement of force. The definition for pound force is the following:

A pound (force) is equal to *g* x 1 lb.

The pound-force, also known as pound, is a measure of force in the SI units, equal to the gravitational force exerted on a mass of one avoirdupois pound on the surface of Earth. It is equal to 4.44822162 newtons.

Note that the pound is also a unit of mass, so using the pound as an alias for the pound-force may cause confusion.

The symbol for pound force is

**lbf**Pound force is compatible with the

newton base unit.