# About pounds-force A.K.A lbf

**What is pounds-force :**

A pound-force (lbf) is a non-SI (non-System International) measurement unit of force. The pound-force is equal to a mass of one avoirdupois¹ pound multiplied by the standard acceleration due to gravity on Earth, which is defined as exactly 9.80665 meter per second². Then one (1) pound-force is equal to 0.45359237 kg × 9.80665 meter per second² = 32.17405 pound × foot per second²).

### What is the symbol for pounds-force:

lbf (lb= pounds, f=force)