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How to use
Use this torque conversion calculator to convert N·m, lb-ft, lb-in, kgf·m and other torque units. Every input is normalized to newton-metres before conversion, and a negative sign can be preserved when it represents rotational direction.
- Enter the torque value; a negative sign may be used for direction.
- Choose source and target units.
- Read the selected conversion plus N·m, lbf·ft, lbf·in and kgf·m equivalents.
How it is calculated
Example
Example: 100 N·m ≈ 73.7562 lbf·ft, ≈ 885.0746 lbf·in and ≈ 10.1972 kgf·m. Also, 1 kgf·m = 9.80665 N·m.
Important notes
Although N·m has the same dimensional product as a joule, torque and energy are different physical quantities and should not be interchanged. Factors for kgf·m, lbf·ft, lbf·in, ozf·in and dyn·cm follow standard conversion relationships; kgf uses standard gravity 9.80665 m/s².
Worked examples and interpreting results
To convert 10 newton-metres to pound-force feet, divide by 1.3558179483314 to get approximately 7.3756 lbf·ft.
| Case | Calculation | Result |
|---|---|---|
| 10 N·m to pound-force feet | 10 ÷ 1.3558179483314004 | 7.375621 lbf·ft |
| 12 pound-force feet to N·m | 12 × 1.3558179483314004 | 16.269815 N·m |
How to check the result
Check the torque unit before using a value: pound-force feet (lbf·ft) and pound-force inches (lbf·in) differ by a factor of 12.
Frequently asked questions
How do I convert torque units?
Choose the source and target units; the calculator converts through N·m internally using fixed unit factors.
How many N·m are in 1 lbf·ft?
Approximately 1.35581795 N·m.
Is N·m the same as a joule?
They share dimensions, but N·m denotes torque and J denotes energy; they are not interchangeable quantities.
Why is 1 kgf·m equal to 9.80665 N·m?
Because kilogram-force is defined using standard gravity, with 1 kgf = 9.80665 N.