Convert Pound-inches to Kilonewton-meters
1 pound-inch (lbf·in) equals 0.000112984829 kilonewton-meters (kN·m).
1 lbf·in = 0.000112984829 kN·m
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound-inch to kilonewton-meter converter to paste a column from Excel.
How to Convert Pound-inch to Kilonewton-meter
- 1 lbf·in = 0.000112984829 kN·m
- 1 kN·m = 8850.745791 lbf·in
- Example: convert 15 lbf·in to kN·m: 15 lbf·in = 15 × 0.000112984829 kN·m = 0.001694772435 kN·m
Formula
kN·m = lbf·in × 0.0001129848290276
or kN·m = lbf·in ÷ 8850.745791327
Derivation from SI units:
- 1 lbf·in = 4.4482216152605 N × 0.0254 m = 0.1129848290276 N·m
- 1 kN·m = 10³ N·m
- 1 lbf·in = 0.1129848290276 N·m ÷ 1000 N·m per kN·m = 0.0001129848290276 kN·m
Both units are defined exactly, so the factor is exact. Pound-inch definition: pound-inch; Kilonewton-meter definition: kilonewton-meter.
Worked examples
- A reading of 25 lbf·in converts to 0.002824620726 kN·m.
25 lbf·in × 0.000112984829 = 0.002824620726 kN·m - A value of 75 lbf·in is 0.008473862177 kN·m.
75 lbf·in × 0.000112984829 = 0.008473862177 kN·m
Pound-inch to Kilonewton-meter conversion table
| Pound-inches (lbf·in) | Kilonewton-meters (kN·m) |
|---|---|
| 1 lbf·in | 0.000112984829 kN·m |
| 5 lbf·in | 0.0005649241451 kN·m |
| 10 lbf·in | 0.00112984829 kN·m |
| 20 lbf·in | 0.002259696581 kN·m |
| 25 lbf·in | 0.002824620726 kN·m |
| 30 lbf·in | 0.003389544871 kN·m |
| 40 lbf·in | 0.004519393161 kN·m |
| 50 lbf·in | 0.005649241451 kN·m |
| 75 lbf·in | 0.008473862177 kN·m |
| 100 lbf·in | 0.0112984829 kN·m |
| 150 lbf·in | 0.01694772435 kN·m |
| 200 lbf·in | 0.02259696581 kN·m |
| 500 lbf·in | 0.05649241451 kN·m |
Where it's used
Pound-inches are used for small fastener and electrical-terminal torques, while kilonewton-meters appear in structural bending moments. Both measure torque (moment of force), so the conversion is a fixed factor.
Pound-inch to other torque units
| Conversion | 1 lbf·in equals |
|---|---|
| pound-inch to newton-meter | 0.112984829 N·m |
| pound-inch to kilonewton-meter | 0.000112984829 kN·m |
| pound-inch to newton-centimeter | 11.2984829 N·cm |
| pound-inch to pound-foot | 0.08333333333 lbf·ft |
| pound-inch to ounce-inch | 16 ozf·in |
| pound-inch to kilogram-force meter | 0.0115212462 kgf·m |
| pound-inch to kilogram-force centimeter | 1.15212462 kgf·cm |
| pound-inch to dyne-centimeter | 1129848.29 dyn·cm |
Frequently asked questions
How many kilonewton-meters are in 1 pound-inch?
1 lbf·in = 0.000112984829 kN·m.
How do I convert pound-inches to kilonewton-meters?
Multiply the value in lbf·in by 0.000112984829, or divide it by 8850.745791. For example, 15 lbf·in × 0.000112984829 = 0.001694772435 kN·m.
Is the lbf·in to kN·m 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
- 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)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
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 Pound-inches to Kilonewton-meters. Retrieved October 17, 2026, from https://scientificconverters.com/torque/pound-inches-to-kilonewton-meters/
IEEE
Scientific Converters, "Convert Pound-inches to Kilonewton-meters," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/torque/pound-inches-to-kilonewton-meters/