Convert Newtons to Pounds-force
1 newton (N) equals 0.2248089431 pounds-force (lbf).
1 N = 0.2248089431 lbf
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk newton to pound-force converter to paste a column from Excel.
How to Convert Newton to Pound-force
- 1 N = 0.2248089431 lbf
- 1 lbf = 4.448221615 N
- Example: convert 15 N to lbf: 15 N = 15 × 0.2248089431 lbf = 3.372134146 lbf
Formula
lbf = N × 0.2248089430997
or lbf = N ÷ 4.448221615261
Derivation from SI units:
- 1 N = 1 kg·m/s²
- 1 lbf = 0.45359237 kg × 9.80665 m/s² = 4.4482216152605 N
Both units are defined exactly, so the factor is exact. Newton definition: newton; Pound-force definition: pound-force.
Worked examples
- A 100 N load is 22.48089431 lbf.
100 N × 0.2248089431 = 22.48089431 lbf - A 500 N spring force is 112.4044715 lbf.
500 N × 0.2248089431 = 112.4044715 lbf
Newton to Pound-force conversion table
| Newtons (N) | Pounds-force (lbf) |
|---|---|
| 1 N | 0.2248089431 lbf |
| 5 N | 1.124044715 lbf |
| 9.80665 N | 2.204622622 lbf |
| 10 N | 2.248089431 lbf |
| 20 N | 4.496178862 lbf |
| 50 N | 11.24044715 lbf |
| 100 N | 22.48089431 lbf |
| 200 N | 44.96178862 lbf |
| 500 N | 112.4044715 lbf |
| 1000 N | 224.8089431 lbf |
| 2000 N | 449.6178862 lbf |
| 5000 N | 1124.044715 lbf |
| 10000 N | 2248.089431 lbf |
Where it's used
SI forces in newtons are converted to pound-force for US specifications, load ratings and test reports. 1 N is about 0.2248 lbf.
Newton to other force units
| Conversion | 1 N equals |
|---|---|
| newton to kilonewton | 0.001 kN |
| newton to pound-force | 0.2248089431 lbf |
| newton to kilogram-force | 0.1019716213 kgf |
| newton to kip | 0.0002248089431 kip |
| newton to dyne | 100000 dyn |
| newton to ounce-force | 3.59694309 ozf |
| newton to gram-force | 101.9716213 gf |
Frequently asked questions
How many pounds-force is 1 N?
1 N = 0.2248089431 lbf.
How many pounds-force are in 1 newton?
1 N = 0.2248089431 lbf.
How do I convert newtons to pounds-force?
Multiply the value in N by 0.2248089431, or divide it by 4.448221615. For example, 15 N × 0.2248089431 = 3.372134146 lbf.
Is the N to lbf conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound-force (lbf)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Newtons to Pounds-force. Retrieved October 17, 2026, from https://scientificconverters.com/force/newtons-to-pound-force/
IEEE
Scientific Converters, "Convert Newtons to Pounds-force," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/force/newtons-to-pound-force/