Work and Power Calculator

Find the work done by a force and the power delivered.

Inputs

N
m
s
Formulas
W = F·d
P = W / t

Results

Work done J
Power W

Work and power

Work is done when a force moves an object through a distance, W = Fd (for a force along the direction of motion). It measures the energy transferred. Power is the rate at which work is done, P = W/t, measured in watts. The same work done in less time means more power.

W = F·d

How to use this calculator

Enter the force, the distance moved, and the time taken. The calculator returns the work done in joules and the average power in watts. One watt equals one joule per second. These ideas connect force, energy, and time, and underpin everything from lifting weights to rating engines and appliances.

Frequently asked questions

Is work done if nothing moves?

No. If the distance moved is zero, no work is done, no matter how large the force. Holding a heavy object still does no physics work.

What is the difference between work and power?

Work is the total energy transferred; power is how fast that energy is transferred. A powerful machine does the same work in less time.

Read the full guide