Newton meters to pound-inches
Type a value in newton meters to see it in pound-inches straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the newton meters box.
- Read the result in pound-inches as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
lbf·in = N·m × 8.850745791
Multiply the value in newton meters by 8.850745791 to get pound-inches.
Example
To convert 25 N·m to pound-inches: 25 × 8.850745791 = 221.269 lbf·in.
Conversion table
| Newton meters (N·m) | Pound-inches (lbf·in) |
|---|---|
| 1 | 8.85075 |
| 2 | 17.7015 |
| 3 | 26.5522 |
| 5 | 44.2537 |
| 10 | 88.5075 |
| 20 | 177.015 |
| 25 | 221.269 |
| 50 | 442.537 |
| 100 | 885.075 |
| 250 | 2,212.69 |
| 500 | 4,425.37 |
| 1,000 | 8,850.75 |
About the units
- Newton meter
- The SI unit of torque: the torque of a one newton force acting at a one meter lever arm.
- Pound-inch
- The pound-inch (inch-pound, lbf·in) is one pound-force at a one inch arm, exactly 0.1129848290276167 newton meters.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many pound-inches are in one newton meter?
1 N·m = 8.85075 lbf·in exactly.
How do I convert newton meters to pound-inches?
Use lbf·in = N·m × 8.850745791. For example, 25 N·m = 221.269 lbf·in.
How many newton meters are in one pound-inch?
1 lbf·in = 0.112985 N·m.
Is a pound-foot the same as a foot-pound?
For torque, yes: both mean one pound-force on a one foot arm, about 1.3558 newton meters. Engineers often write pound-foot (lbf·ft) for torque and foot-pound for energy to keep the two apart.
Why is torque not measured in joules if both are newton meters?
Torque is a force times a lever arm at right angles to it, while work is a force times a distance along it. The dimensions match, but by convention torque is always given in newton meters.