Force converter
Convert pounds-force, newtons, kilonewtons and more force units instantly.
Force Converter – 7 Units, Exact Factors
1 pound-force = 4.4482 newtons
Default is 5 significant figures. “Search units as” decides what words like gallon, pint or cup mean when you type them. Shortcuts: Alt+S swap · Alt+C copy · Alt+L link · / search
- 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
Common force conversions
About force conversions
Kilogram-force and pound-force use standard gravity (9.80665 m/s²) exactly.
Force units explained
| Unit | System | Definition and notes |
|---|---|---|
| Newton (N) | SI (metric) | Base unitThe SI unit of force: the push that speeds up 1 kg by 1 m/s every second. |
| Kilonewton (kN) | SI (metric) | 1 kN = 1,000 N (exact) |
| Pound-force (lbf) | US & imperial (identical) | 1 lbf ≈ 4.4482216 NThe force of one pound under standard gravity: exactly 4.4482216152605 N. |
| Kip (kilopound-force) (kip) | US & imperial (identical) | 1 kip ≈ 4,448.2216 NA thousand pounds of force (about 4,448.2 N). Common in US structural engineering. |
| Kilogram-force (kgf) | other | 1 kgf = 9.80665 N (exact)The force of one kilogram under standard gravity: exactly 9.80665 N. |
| Ounce-force (ozf) | US & imperial (identical) | 1 ozf ≈ 0.27801385 N |
| Dyne (dyn) | other | 1 dyn = 0.00001 N (exact) |
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 |
Frequently asked questions
Which force units can I convert?
newtons (N), kilonewtons (kN), pounds-force (lbf), kips (kip), kilograms-force (kgf), ounces-force (ozf), dynes (dyn).
How accurate are the results?
Every unit is stored with its exact defining factor (NIST SP 811, NIST Handbook 44 or the BIPM SI Brochure). Calculations use double-precision arithmetic and are rounded only for display, to 5 significant figures by default (trailing zeros dropped, so 1 km shows as 1000 m). You can choose Auto (up to 10 digits), fixed decimals or more significant figures, or switch to scientific or engineering notation.