Direct conversion
Convert pound-force [lbf] to newton [N] instantly with formula, examples, chart, and FAQs.
Quick answer
Use the calculator below for any custom value, then check the formula, examples, chart, and reverse conversion links.
1 pound-force [lbf] = 4.448222 newton [N]
1 pound-force [lbf] = 4.448222 newton [N]
Example: 1 pound-force [lbf] equals 4.448222 newton [N].
Force conversions use newton as the reference unit and include SI, metric force, and imperial force units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
The pound-force is a customary force unit based on the force exerted by gravity on one pound-mass under standard gravity.
HistoryPound-force developed in imperial engineering contexts that separate mass and force units.
Current usePound-force is used in mechanical engineering, fasteners, testing equipment, thrust, and force gauges.
The newton is the SI derived unit of force.
HistoryThe newton is named after Isaac Newton and follows from kilogram, meter, and second SI units.
Current useNewtons are used in physics, engineering, mechanical design, materials testing, and product specifications.
| pound-force [lbf] | newton [N] |
|---|---|
| 1 | 4.448222 |
| 2 | 8.896443 |
| 5 | 22.241108 |
| 10 | 44.482216 |
| 20 | 88.964432 |
| 25 | 111.20554 |
| 50 | 222.411081 |
| 100 | 444.822162 |
| 1000 | 4448.221615 |
Use this formula: 1 pound-force [lbf] = 4.448222 newton [N] Enter your value in the calculator and the result updates instantly.
1 pound-force [lbf] equals 4.448222 newton [N].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.