# Nm to in-lbs Converter

URL: https://speedycalculator.com/calculators/conversion/nm-to-in-lbs/
Last updated: 2026-10-25

> Convert newton-metres (N·m) to pound-inches (lbf·in): 1 newton-metre = 8.8507458 lbf·in, so multiply by 8.8507458 or divide by 0.11298483. Both fields are editable, so you can also type in pound-inches and get newton-metres back.

## Inputs

- Newton-metres (N·m)

## Results

- Pound-inches

## Formula

```
1 N·m = 8.8507458 lbf·in
1 lbf·in = 0.11298483 N·m
lbf·in = N·m × 8.8507458
```

## Explanation

One newton-metre is about 8.85 inch-pounds. Bicycle stems, scope rings and electrical lugs often specify a few N·m, which is easier to set on an in-lb wrench.

### How to use the Nm to in-lbs Converter

- Type the number of newton-metres into the **Newton-metres** field. Decimals such as 2.5 are fine.
- Read the answer in **Pound-inches** – it updates as you type, with no button to press.
- To convert the other way, type into **Pound-inches** and the newton-metres are recalculated.
- Press **Copy results** to copy both values with the page title, or **Copy link** to share this exact conversion.

This page converts only N·m ⇄ lbf·in. Need a different unit? Use the general torque converter, where you can choose any “from” and “to” unit.

### How it works

Both units measure torque, so they are always in the same ratio: one newton-metre equals 8.8507458 pound-inches. The calculator multiplies the number of newton-metres you type by 8.8507458 to give pound-inches, and when you type into the pound-inches field it divides by the same factor to give newton-metres. Because the ratio never changes, doubling the newton-metres always doubles the pound-inches. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).

### How to convert newton-metres to pound-inches

- Write down the value in newton-metres, for example **5 N·m**.
- Multiply by the conversion factor 8.8507458 (because 1 newton-metre = 8.8507458 lbf·in).
- 5 × 8.8507458 = **44.253729 lbf·in**.
- To go back from pound-inches to newton-metres, divide by 8.8507458 – or multiply by 0.11298483.

### N·m to lbf·in conversion table

Newton-metresPound-inchesPound-inchesNewton-metres1 N·m8.8507458 lbf·in1 lbf·in0.11298483 N·m2 N·m17.701492 lbf·in2 lbf·in0.22596966 N·m3 N·m26.552237 lbf·in5 lbf·in0.56492415 N·m4 N·m35.402983 lbf·in10 lbf·in1.1298483 N·m5 N·m44.253729 lbf·in20 lbf·in2.2596966 N·m6 N·m53.104475 lbf·in50 lbf·in5.6492415 N·m8 N·m70.805966 lbf·in100 lbf·in11.298483 N·m10 N·m88.507458 lbf·in1,000 lbf·in112.98483 N·m12 N·m106.20895 lbf·in15 N·m132.76119 lbf·in20 N·m177.01492 lbf·in

### What is a newton-metre?

The newton-metre is the SI unit of torque: a force of one newton at a lever arm of one metre. Car and bicycle torque specifications use N·m.

### What is a pound-inch?

The pound-inch (in-lb) is 1/12 of a pound-foot, about 0.113 N·m, used for small fasteners and electrical terminals.

### Quick mental conversion

For a fast estimate, multiply newton-metres by about **8.9** to get pound-inches; the error is about 0.6%. Use the calculator above when you need the exact figure.

### Common mistakes to avoid

Confusing ft-lb with in-lb (a factor of 12), and treating torque in n·m as energy in joules.

## Worked example

Inputs — Newton-metres: 5 N·m.

Results — **Pound-inches = 44.25372896 lbf·in**.

## FAQ

**How many in-lb is 5 N·m?**
About 44.3 in-lb.

**How many N·m is 50 in-lb?**
About 5.65 N·m.

**How many pound-inches are in one newton-metre?**
1 N·m = 8.8507458 lbf·in.

**How many newton-metres are in one pound-inch?**
1 lbf·in = 0.11298483 N·m.

**How do I convert newton-metres to pound-inches?**
Multiply the number of newton-metres by 8.8507458. For example, 5 N·m × 8.8507458 = 44.253729 lbf·in.

**How do I convert pound-inches back to newton-metres?**
Divide by 8.8507458 (or multiply by 0.11298483), or simply type the value into the pound-inches field above.

**What is 10 N·m in pound-inches?**
10 N·m = 88.507458 lbf·in.

**What is 2 N·m in pound-inches?**
2 N·m = 17.701492 lbf·in.

**Is this conversion exact?**
Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.

**Can I convert to other units on this page?**
This page converts only between newton-metres and pound-inches. To pick any torque unit, use the general torque converter linked under Related calculators.

**What formula does the Nm to in-lbs Converter use?**
1 N·m = 8.8507458 lbf·in.


## Sources

- [NIST Special Publication 811 – Guide for the Use of the International System of Units](https://www.nist.gov/pml/special-publication-811)
- [NIST Handbook 44 Appendix C – General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition)