Pounds-force to Newtons
Convert pounds-force to newtons instantly.
Pounds-force to Newtons (lbf to N) Converter
1 pound-force = 4.4482 newtons
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- 1 lbf = 4.4482 N
- 5 lbf = 22.241 N
- 10 lbf = 44.482 N
- 25 lbf = 111.21 N
- NewtonsN
- Pounds-forcelbf
- NewtonsN
- Pounds-forcelbf
How it’s calculated
N = lbf × 4.448221615
- Multiply the value in pounds-force by 4.448221615.
- To go back, divide by 4.448221615 (or multiply by 0.2248089431).
- 1 lbf = 4.448221615 N · 1 N = 0.2248089431 lbf
Quick examples
1 pound-force = 4.4482 newtons · 1 N = 0.22481 lbf
- 1 pound-force = 4.4482 newtons
- 5 pounds-force = 22.241 newtons
- 10 pounds-force = 44.482 newtons
- 25 pounds-force = 111.21 newtons
- 100 pounds-force = 444.82 newtons
Pounds-force to newtons conversion table
| Pounds-force (lbf) | Newtons (N) |
|---|---|
| 0.1 lbf | 0.44482 N |
| 0.5 lbf | 2.2241 N |
| 1 lbf | 4.4482 N |
| 2 lbf | 8.8964 N |
| 3 lbf | 13.345 N |
| 4 lbf | 17.793 N |
| 5 lbf | 22.241 N |
| 6 lbf | 26.689 N |
| 7 lbf | 31.138 N |
| 8 lbf | 35.586 N |
| 9 lbf | 40.034 N |
| 10 lbf | 44.482 N |
| 15 lbf | 66.723 N |
| 20 lbf | 88.964 N |
| 25 lbf | 111.21 N |
| 30 lbf | 133.45 N |
| 40 lbf | 177.93 N |
| 50 lbf | 222.41 N |
| 75 lbf | 333.62 N |
| 100 lbf | 444.82 N |
| 250 lbf | 1,112.1 N |
| 500 lbf | 2,224.1 N |
| 1,000 lbf | 4,448.2 N |
About these units
Pound-force (lbf)
US & imperial (identical)
1 lbf ≈ 4.4482216 N
The force of one pound under standard gravity: exactly 4.4482216152605 N.
Source: NIST SP 811 / Handbook 44
Newton (N)
SI (metric)
Base unit
The SI unit of force: the push that speeds up 1 kg by 1 m/s every second.
Source: BIPM SI Brochure (9th ed.)
Frequently asked questions
How do I convert pounds-force to newtons?
Use N = lbf × 4.448221615. Multiply the value in pounds-force by 4.448221615.
How many newtons are in 1 pound-force?
1 pound-force (lbf) equals 4.4482 newtons (N); more precisely 4.448221615.
How many pounds-force are in 1 newton?
1 newton (N) equals 0.22481 pounds-force (lbf); more precisely 0.2248089431.
What is 10 lbf in N?
10 pounds-force = 44.482 newtons.
What is a pound-force?
The force of one pound under standard gravity: exactly 4.4482216152605 N.
What is a newton?
The SI unit of force: the push that speeds up 1 kg by 1 m/s every second.
Related conversions
Formula: N = lbf × 4.448221615. Factors last reviewed 2026-10-27.