Work Calculator

Use W = Fd cos θ and see joules, kilojoules, watt-hours, and foot-pounds.

Force

Displacement

Angle between force and motiondegrees

—J

—kJ

—Wh

—ft·lbf

—W = Fd cos θ

These are idealized classical-physics calculations. Real systems can differ because of air resistance, friction, deformation, measurement uncertainty, non-constant forces, or other effects not included in the selected model.

How to use this Work Calculator

Calculate mechanical work from force, displacement, and the angle between them. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.