Newton Meters to Joules Calculator

Quick answer

This calculator finds the work done (in joules) when a force in newtons moves an object a distance in metres, and explains why a newton-metre of torque is not the same thing as a joule of energy.

Work (energy)
—

A joule is the work done by a force of one newton acting through one metre. Torque is also measured in newton-metres, but there the force is perpendicular to the lever arm and nothing moves along it, so physicists write torque as N·m and keep joules for energy.

How to use the Newton Meters to Joules Calculator

  1. Force
  2. Distance moved
  3. Every result field is editable: type into Work (energy) and Distance moved plus every other field update to match.

Results update as you type, and every field accepts the units shown in its menu.

How it works

The force is multiplied by the distance moved in the direction of the force.

Inputs explained

Field What to enter
Force Units: N, kN, lbf, kgf
Distance moved Units: m, km, cm, mm, in, ft …

Example values

How the main result changes when Distance moved changes and everything else stays at the example values above:

Distance moved (m) Work (energy) (J)
1 50
1.5 75
2 100
2.5 125
3 150
4 200

Formula

W = F × d (1 J = 1 N × 1 m)

Worked example

Inputs — Force: 50 N; Distance moved: 2 m.
Results — Work (energy) = 100 J.

Frequently asked questions

Is 1 N·m equal to 1 J?

Numerically yes, but by convention N·m is used for torque and J for energy or work.

How much work is lifting 10 kg by 1 m?

About 98 J (10 kg × 9.81 m/s² × 1 m).

What formula does the Newton Meters to Joules Calculator use?

W = F × d (1 J = 1 N × 1 m).

Sources

  1. BIPM – The International System of Units (SI Brochure, 9th edition)

Cite this calculator

Speedy Calculator. (2026). Newton Meters to Joules Calculator. Speedy Calculator. https://speedycalculator.com/calculators/conversion/newton-to-joules/