How to convert inch-pounds to newton metres
One inch-pound equals 0.112985 newton metres, so multiply the number of inch-pounds by 0.112985:
N·m = in·lb × 0.112985
in·lb = N·m ÷ 0.112985 (1 N·m = 8.8508 in·lb)
Example: 12 in·lb → 12 × 0.112985 = 1.3558 N·m.
Going the other way, divide by 0.112985, or multiply by 8.8508; the newton metres to inch-pounds converter does it for you.
Everyday values
| Inch-pounds | Newton metres | For example |
|---|---|---|
| 12 in·lb | 1.3558 N·m | one pound-foot |
| 25 in·lb | 2.8246 N·m | small screws, roughly |
| 100 in·lb | 11.2985 N·m | 100 in·lb |
| 200 in·lb | 22.597 N·m | 200 in·lb |
When you need this conversion
Inch-pounds are used for small fasteners, bicycle components and electronics. One inch-pound is 0.113 N·m and twelve inch-pounds make one pound-foot; mixing them up can overtighten a bolt twelve times over.
Inch-pound to newton metre conversion table
| in·lb | N·m | in·lb | N·m |
|---|---|---|---|
| 10 in·lb | 1.1299 N·m | 130 in·lb | 14.688 N·m |
| 20 in·lb | 2.2597 N·m | 140 in·lb | 15.8179 N·m |
| 30 in·lb | 3.3895 N·m | 150 in·lb | 16.9477 N·m |
| 40 in·lb | 4.5194 N·m | 160 in·lb | 18.0776 N·m |
| 50 in·lb | 5.6492 N·m | 170 in·lb | 19.2074 N·m |
| 60 in·lb | 6.7791 N·m | 180 in·lb | 20.3373 N·m |
| 70 in·lb | 7.9089 N·m | 190 in·lb | 21.4671 N·m |
| 80 in·lb | 9.0388 N·m | 200 in·lb | 22.597 N·m |
| 90 in·lb | 10.1686 N·m | 210 in·lb | 23.7268 N·m |
| 100 in·lb | 11.2985 N·m | 220 in·lb | 24.8567 N·m |
| 110 in·lb | 12.4283 N·m | 230 in·lb | 25.9865 N·m |
| 120 in·lb | 13.5582 N·m | 240 in·lb | 27.1164 N·m |
About the units
- Inch-pound (in·lb): 1 pound-force acting 1 inch from the axis, 1/12 of a pound-foot.
- Newton metre (N·m): the torque of 1 newton acting 1 metre from the axis.
Both are units of torque. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many newton metres are in one inch-pound?
One inch-pound is 0.112985 newton metres. One newton metre is 8.8508 inch-pounds.
How do I convert inch-pounds to newton metres?
Multiply the value in inch-pounds by 0.112985. To go back, divide by 0.112985.
What is 12 in·lb in newton metres?
12 in·lb = 1.3558 N·m.
What is 25 in·lb in newton metres?
25 in·lb = 2.8246 N·m.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.