A pound-force (lbf) is a unit of force in the imperial and US customary systems. One pound-force is the force needed to accelerate one pound-mass at the standard acceleration of gravity on Earth (approximately 32.174 ft/s²).
A newton (N) is the SI unit of force. It is defined as the force needed to accelerate one kilogram of mass at the rate of one meter per second squared in the direction of the applied force.
| Pound-force (lbf) | Newton (N) |
|---|---|
| 1 | 4.448222 |
| 2 | 8.896443 |
| 5 | 22.24111 |
| 10 | 44.48222 |
| 20 | 88.96443 |
To convert pound-force (lbf) to newton (N), multiply the pound-force value by 4.448222.
Formula: N = lbf × 4.448222
Example: Convert 5 lbf to N
5 lbf = 5 × 4.448222 = 22.24111 N
To convert newton (N) to pound-force (lbf), divide the newton value by 4.448222.
Formula: lbf = N ÷ 4.448222
Example: Convert 100 N to lbf
100 N = 100 ÷ 4.448222 = 22.4809 lbf