Pound-feet to newton meters
Type a value in pound-feet to see it in newton meters 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 pound-feet box.
- Read the result in newton meters as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
N·m = lbf·ft × 1.355817948
Multiply the value in pound-feet by 1.355817948 to get newton meters.
Example
To convert 25 lbf·ft to newton meters: 25 × 1.355817948 = 33.8954 N·m.
Conversion table
| Pound-feet (lbf·ft) | Newton meters (N·m) |
|---|---|
| 1 | 1.35582 |
| 2 | 2.71164 |
| 3 | 4.06745 |
| 5 | 6.77909 |
| 10 | 13.5582 |
| 20 | 27.1164 |
| 25 | 33.8954 |
| 50 | 67.7909 |
| 100 | 135.582 |
| 250 | 338.954 |
| 500 | 677.909 |
| 1,000 | 1,355.82 |
About the units
- Pound-foot
- The pound-foot (also written foot-pound, lbf·ft) is one pound-force at a one foot arm, exactly 1.3558179483314004 newton meters.
- Newton meter
- The SI unit of torque: the torque of a one newton force acting at a one meter lever arm.
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 newton meters are in one pound-foot?
1 lbf·ft = 1.35582 N·m exactly.
How do I convert pound-feet to newton meters?
Use N·m = lbf·ft × 1.355817948. For example, 25 lbf·ft = 33.8954 N·m.
How many pound-feet are in one newton meter?
1 N·m = 0.737562 lbf·ft.
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.