Convert Newton-meters to Pound-inches
1 newton-meter (N·m) equals 8.850745791 pound-inches (lbf·in).
1 N·m = 8.850745791 lbf·in
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk newton-meter to pound-inch converter to paste a column from Excel.
How to Convert Newton-meter to Pound-inch
- 1 N·m = 8.850745791 lbf·in
- 1 lbf·in = 0.112984829 N·m
- Example: convert 15 N·m to lbf·in: 15 N·m = 15 × 8.850745791 lbf·in = 132.7611869 lbf·in
Formula
lbf·in = N·m × 8.850745791327
Derivation from SI units:
- 1 N·m = 1 N × 1 m = 1 kg·m²·s⁻²
- 1 lbf·in = 4.4482216152605 N × 0.0254 m = 0.1129848290276 N·m
Both units are defined exactly, so the factor is exact. Newton-meter definition: newton-meter; Pound-inch definition: pound-inch.
Worked examples
- A 5 N·m bicycle stem bolt is 44.25372896 lbf·in.
5 N·m × 8.850745791 = 44.25372896 lbf·in - A 2.5 N·m terminal screw is 22.12686448 lbf·in.
2.5 N·m × 8.850745791 = 22.12686448 lbf·in
Newton-meter to Pound-inch conversion table
| Newton-meters (N·m) | Pound-inches (lbf·in) |
|---|---|
| 1 N·m | 8.850745791 lbf·in |
| 2 N·m | 17.70149158 lbf·in |
| 5 N·m | 44.25372896 lbf·in |
| 10 N·m | 88.50745791 lbf·in |
| 12 N·m | 106.2089495 lbf·in |
| 20 N·m | 177.0149158 lbf·in |
| 25 N·m | 221.2686448 lbf·in |
| 30 N·m | 265.5223737 lbf·in |
| 40 N·m | 354.0298317 lbf·in |
| 50 N·m | 442.5372896 lbf·in |
| 80 N·m | 708.0596633 lbf·in |
| 100 N·m | 885.0745791 lbf·in |
| 120 N·m | 1062.089495 lbf·in |
| 150 N·m | 1327.611869 lbf·in |
| 200 N·m | 1770.149158 lbf·in |
| 300 N·m | 2655.223737 lbf·in |
| 400 N·m | 3540.298317 lbf·in |
| 500 N·m | 4425.372896 lbf·in |
Where it's used
Metric small-fastener torques are converted to inch-pounds for US torque screwdrivers.
Newton-meter to other torque units
| Conversion | 1 N·m equals |
|---|---|
| newton-meter to kilonewton-meter | 0.001 kN·m |
| newton-meter to newton-centimeter | 100 N·cm |
| newton-meter to pound-foot | 0.7375621493 lbf·ft |
| newton-meter to pound-inch | 8.850745791 lbf·in |
| newton-meter to ounce-inch | 141.6119327 ozf·in |
| newton-meter to kilogram-force meter | 0.1019716213 kgf·m |
| newton-meter to kilogram-force centimeter | 10.19716213 kgf·cm |
| newton-meter to dyne-centimeter | 10000000 dyn·cm |
Frequently asked questions
How many in-lb is 1 N·m?
1 N·m = 8.850745791 lbf·in.
How many pound-inches are in 1 newton-meter?
1 N·m = 8.850745791 lbf·in.
How do I convert newton-meters to pound-inches?
Multiply the value in N·m by 8.850745791. For example, 15 N·m × 8.850745791 = 132.7611869 lbf·in.
Is the N·m to lbf·in 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 5, derived units expressed 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 inch (lbf·in)".
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 Newton-meters to Pound-inches. Retrieved October 17, 2026, from https://scientificconverters.com/torque/newton-meters-to-pound-inches/
IEEE
Scientific Converters, "Convert Newton-meters to Pound-inches," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/torque/newton-meters-to-pound-inches/