Convert Pound-inches to Newton meters
1 pound-inch is 0.11 N·m. One pound-inch is exactly 0.112984829028 newton meters.
One pound-inch is 0.11298483 newton meters. To convert pound-inches to newton meters, multiply by 0.11298483; to go the other way, divide by 0.11298483 or multiply by 8.8507458. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Special Publication 811. One twelfth of a pound-foot.
Factor checked against the defining standard · How we check
- Pound-inches × 0.11298483
1 * 0.11298480.113 N·m
1 pound-inch in every torque unit
| Unit | Value | Exact factor |
|---|---|---|
| pound-feet | 0.08333333333 lbf·ft | × 0.0833333333333 |
| pound-inches (as entered) | 1 lbf·in | — |
| newton meters | 0.112984829 N·m | × 0.112984829028 |
| newton centimeters | 11.2984829 N·cm | × 11.2984829028 |
| kilogram-force meters | 0.0115212462 kgf·m | × 0.011521246198 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: pound-inches to newton metres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.
How do you convert pound-inches to newton meters? The converter and the working
- 1.Take the measurement in pound-inches.
- 2.Multiply by 0.11298483 — that is how many newton meters fit in one pound-inch.
- 3.To go back the other way, divide by 0.11298483, or multiply by 8.8507458.
Worked example: 25 pound-inches to newton meters
- Formula
- lbf·in × 0.11298483 = N·m
- Arithmetic
- 25 × 0.11298483 = 2.82 N·m
- Answer
- 25 lbf·in = 2.82 N·m
The factor is rounded for display; the figure above is computed from the full value.
Pound-inches to newton meters conversion table
| Pound-inches | Newton meters |
|---|---|
| 1 lbf·in | 0.11 N·m |
| 2 lbf·in | 0.23 N·m |
| 3 lbf·in | 0.34 N·m |
| 4 lbf·in | 0.45 N·m |
| 5 lbf·in | 0.56 N·m |
| 6 lbf·in | 0.68 N·m |
| 7 lbf·in | 0.79 N·m |
| 8 lbf·in | 0.9 N·m |
| 9 lbf·in | 1.02 N·m |
| 10 lbf·in | 1.13 N·m |
| 12 lbf·in | 1.36 N·m |
| 15 lbf·in | 1.69 N·m |
| 20 lbf·in | 2.26 N·m |
| 25 lbf·in | 2.82 N·m |
| 50 lbf·in | 5.65 N·m |
| 100 lbf·in | 11.3 N·m |
| 200 lbf·in | 22.6 N·m |
| 300 lbf·in | 33.9 N·m |
| 500 lbf·in | 56.49 N·m |
| 1000 lbf·in | 112.98 N·m |
| 2000 lbf·in | 225.97 N·m |
| 5000 lbf·in | 564.92 N·m |
| 10000 lbf·in | 1,129.85 N·m |
A pound-inch is a twelfth of a pound-foot
Small fasteners are specified in pound-inches — 1 lbf·in is 0.11298483 N·m — and a torque wrench set to 30 when the spec said 30 lbf·in will apply twelve times the intended torque if its scale is in pound-feet. This is a routine way to snap a bolt. Check the units printed on the wrench before the number.
NIST Special Publication 811 — Guide for the Use of the International System of Units
What is a pound-inch?
One twelfth of a pound-foot. Small fasteners, spark plugs and bicycle components are specified here, which is why a spec of "80 in-lb" is not a misprinted 80 ft-lb.
What is a newton meter?
The SI unit: one newton acting at one meter. Every metric service manual states torque in it.
How many newton meters are in a pound-inch?
One pound-inch is 0.11298483 newton meters. Going the other way, one newton meter is 8.8507458 pound-inches. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every torque unit here
The whole group — 5 units with their symbols and the size of each one in newton meters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a pound-inch.
Source: NIST Special Publication 811 — pound-force is exactly 4.4482216152605 N
Cite this page
- APA
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- Chicago
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The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.
Questions people actually ask
- How many newton meters are in a pound-inch?
- 0.11298483. The SI unit: one newton acting at one meter. Every metric service manual states torque in it.
- How do I convert newton meters back to pound-inches?
- Divide by 0.11298483, or multiply by 8.8507458 — they are the same operation.
Other torque conversions
Newton meters to pound-inches — the same conversion the other way.