Physics

Potential Energy Calculator

Calculate gravitational potential energy from mass, height and local gravity, with the impact speed it converts into.

kg
m
m/s²
Gravitational potential energy
—
PE = m · g · hMasskgHeightmGravitym/s²

Energy is conserved, so the two are the same number

Everything a raised object stores as potential energy it releases as kinetic energy on the way down. That is why the impact-speed row uses √(2gh): setting mgh equal to ½mv² and solving for v cancels the mass entirely. A feather and a hammer dropped in a vacuum hit at the same speed, which is exactly what Apollo 15 demonstrated on the Moon.

The formula

PE = m · g · h

Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.

How to use the Potential Energy Calculator

  1. Fill in each field with your own figures — the defaults are only there as an example.
  2. The result updates as you type, so there is no button to press.
  3. Check the breakdown under the main result for the supporting numbers.
  4. Use the copy button to take the result with you, or share the link to reload the same inputs.

Potential Energy Calculator — frequently asked questions

Is this potential energy calculator free to use?

Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.

How accurate is the result?

The maths is exact for the formula shown on the page. Accuracy in the real world depends on your inputs and on assumptions the formula cannot see, so treat the output as a well-grounded estimate rather than a quote.

Can I use it on my phone?

Yes. The page is responsive, weighs a few kilobytes and works offline once loaded, so it behaves the same on a phone as on a desktop.

What people search for

This page answers each of these searches. They are the exact phrases visitors use to find the potential energy calculator.

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About this calculator

Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.

Last reviewed August 23, 2026 · Calculation runs client-side · No data collected · Report an error