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Torque Calculator

Enter a force, the distance from the pivot and the angle to find the torque.

N
m
°

90° means the force is perpendicular to the lever, which gives the most torque.

This result is an estimate only. Double-check important figures before relying on them.

How it is calculated

  • Torque = force × distance × sin(angle)
  • 1 N·m = 0.7376 lb·ft
  • 1 kgf·m = 9.80665 N·m

For the force itself, see the force calculator.

Worked example

A 50 N push on a spanner 0.3 m long, at right angles:

  • Torque = 50 × 0.3 × sin 90° = 15 N·m
  • That is about 11.06 lb·ft

Why your number may differ

Real torque wrench settings include friction and are given for specific thread conditions. Always follow the maker’s figure for safety-critical fasteners.

Frequently asked questions

What is torque?

The turning effect of a force about a pivot. It is the force times the distance from the pivot, times the sine of the angle between them.

Why does the angle matter?

Only the part of the force at right angles to the lever turns it. Pushing straight along the lever gives no torque.

How do I convert N·m to lb·ft?

Multiply by 0.7376. A torque of 100 N·m is about 73.8 lb·ft.

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