Weight on Other Planets Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter your weight on Earth.
- Read your weight elsewhere.
How it works
Weight scales with each body's surface gravity relative to Earth (Moon 0.165, Mars 0.379, etc.).
Worked example
80 kg on Earth. ≈ 13.2 kg on the Moon, 30.3 kg on Mars.
Common mistakes
- Thinking your mass changes — only weight (the force of gravity) does.
- Expecting Jupiter's 'surface' — the figure uses its cloud-top gravity.
Frequently asked questions
Does my mass change on the Moon?
No — mass is constant. Only your weight (mass × local gravity) changes.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.