Potential Energy Calculator
Calculate gravitational potential energy (PE = mgh) instantly using mass, gravity, and height in metric or imperial units.
Use the Potential Energy Calculator
Inputs
Earth default: 9.81 m/s²
Enter mass and height to calculate potential energy
Formula
PE = m × g × h
Potential Energy
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Joules
All Units
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Summary
This tool computes gravitational potential energy using the formula PE = m × g × h, where m is mass, g is gravitational acceleration, and h is height above a reference point. It supports both metric (kilograms and meters) and imperial (pounds and feet) unit systems, converting results to Joules, kilojoules, and foot-pounds. Ideal for physics students, engineers, and anyone needing quick energy calculations.
How it works
- Select your preferred unit system: metric (kg, m) or imperial (lb, ft).
- Enter the object mass in kilograms or pounds.
- Enter the height above the reference point in meters or feet.
- Optionally adjust the gravitational acceleration (default 9.81 m/s² or 32.174 ft/s²).
- The calculator instantly computes PE = m × g × h and displays results in multiple units.
Use cases
- Calculate the energy stored in a raised object before it falls.
- Solve physics homework problems involving gravitational PE.
- Estimate energy requirements for lifting loads in engineering.
- Compare potential energy at different heights for a given mass.
- Convert potential energy values between joules and foot-pounds.
- Understand energy conservation in mechanical systems.
Frequently Asked Questions
Last updated: 2026-05-23 · Reviewed by Nham Vu