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Science Calculators

Torque from Force Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
N
m
Verified formula Private

Torque

15.0000

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Torque from Force Calculator

The Torque from Force Calculator works out your torque in an instant. Enter force and lever arm length and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the force.
  2. Enter the lever arm length.
  3. Read off your torque — the calculator updates automatically, with no button to press.

Formula

The Torque from Force Calculator uses the formula:

Torque = Force × Lever arm length

Worked example

For example, with force of 50 N and lever arm length of 0.3 m, the torque is 15.0000.

Inputs used
Force 50 N
Lever arm length 0.3 m
Results
Torque 15.0000

Results are estimates for educational use, not professional advice.

Key terms explained

Force
A push or pull on an object, equal to mass × acceleration (Newton's second law).

Frequently asked questions

Multiply force by the lever arm length: T = F × r. A 50 N force on a 0.3 m arm gives 15 N·m.

It is the perpendicular distance from the pivot to where the force acts; a longer arm gives more torque.

Newton-metres (N·m) when force is in newtons and distance in metres.

A longer handle increases the lever arm, so the same effort produces more torque to loosen a bolt.

Enter the force. Enter the lever arm length. Read off your torque — the calculator updates automatically, with no button to press.

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