Joules to Force Calculator solves force, work energy, or distance with J, kJ, Wh, N, lbf, metric and US lengths, plus angled-force and equivalent-mass results.

Use signed work and the angle between the force and displacement.

For a constant force along straight displacement, or an appropriate path average at a fixed angle. Energy alone does not determine force.

0° is aligned; 90° gives zero work; 180° opposes motion.

Joules to Force Formula

For a force aligned with straight displacement, the following equation gives the constant force or its path average. At a fixed angle θ, use W = F × d × cos θ; the calculator also supports signed work and inverse distance.

F = J / d
  • Where F is the force (N)
  • J is the number of joules of work (joules)
  • d is the distance over which the work was performed

For aligned force, divide signed work in joules by displacement distance in meters. At an angle, F = W / (d × cos θ); zero distance or a 90° angle does not determine a unique force from zero work.

Joules to Newtons Conversion Table (Assuming Distance = 1 m)
Energy (J) Force (N)
0.10.1
0.50.5
11
22
55
1010
2020
2525
5050
7575
100100
150150
200200
250250
500500
750750
1,0001,000
2,0002,000
5,0005,000
10,00010,000
Assumes distance of 1 meter. Work = Force × Distance, so Force (N) = Energy (J) ÷ Distance (m). With d = 1 m, 1 J corresponds to 1 N.

Can Joules be Converted to Force?

Yes, joules can be converted to force if the work’s distance is known. Joules is a unit of force times distance, so to figure force, you must know distance.

How to Convert Joules to Force?

Example Problem:

The following example outlines the steps and information needed to calculate force from joules.

First, determine the total amount of joules. For this problem, the total work done in joules is 500 J.

Next, determine the total distance. In this case the joules of work were done over a distance of 10 m.

Finally, calculate the force from joules using the formula above:

F = J / d

F = 500 / 10

F = 50 N