Does the direction of the force matter?

Yes. Only the component of force perpendicular to the lever arm creates torque. This calculator assumes the force is applied at 90 degrees to the arm, which gives the maximum torque.

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Torque

Newton Meter Calculator

Work out torque in newton-metres from a force and the length of the lever arm, and see the result converted to foot-pounds and inch-pounds.

Torque

20 Nm

Foot-pounds—

Inch-pounds—

Kilogram-force metres—

Torque in different units

The same torque expressed in newton-metres, foot-pounds, and inch-pounds.

How it works

Torque is the turning effect of a force applied at a distance from a pivot. It equals the force multiplied by the perpendicular lever-arm length. A longer arm or a bigger force both raise the torque.

τ (Nm) = Force (N) × distance (m)
1 Nm = 0.737562 ft-lbs = 8.85075 in-lbs

Worked example

Pushing with 50 N at the end of a 0.4 m wrench gives 50 × 0.4 = 20 Nm, or about 14.75 ft-lbs.

Frequently asked questions

How do you calculate torque in newton metres?

Multiply force in newtons by lever-arm distance in metres. 50 N × 0.4 m = 20 Nm.

Does force direction matter?

Yes — only the perpendicular component makes torque. This tool assumes a 90° push for maximum torque.