Potential Energy Calculator

Use PE = mgh with common mass and height units and compare joules, kilojoules, watt-hours, and foot-pounds.

Mass

Height change

Gravity

—J

—kJ

—Wh

—ft·lbf

—PE = mgh

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 Potential Energy Calculator

Calculate gravitational potential energy from mass, height, and gravity. 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.