About the Weight on Other Planets Calculator
Your mass is the amount of matter in your body and stays the same everywhere, but your weight depends on the gravity pulling on you. This calculator takes your weight on Earth and shows what it would be on the Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto and the Sun, with each world's surface gravity and how it compares to Earth. You can enter kilograms, pounds or stone. It is a fun way to explain gravity to children, to prepare a school project or just to find out that you would be six times lighter on the Moon and more than two and a half times heavier on Jupiter.
Updated October 2026
How to use the Weight on Other Planets Calculator
- 1Type your weight on Earth.
- 2Choose kilograms, pounds or stone.
- 3Read the headline result for the Moon, Mars and Jupiter.
- 4Scan the table for every planet, with surface gravity and the ratio to Earth.
- 5Copy the whole list to share.
Surface gravity at a glance
- Moon: 1.62 m/s², about 17% of Earth
- Mars: 3.71 m/s², about 38%
- Venus: 8.87 m/s², about 90%
- Earth: 9.81 m/s², by definition 100%
- Jupiter: 24.79 m/s², about 253%
- Sun: 274 m/s², about 2,790%
Ideas for the classroom or home
Ask children to guess before they look: on which planet would they weigh the least and the most? Compare how high they could jump on the Moon, where they would reach about six times higher. Use the list to discuss why smaller worlds have weaker gravity, and why gas giants, though huge, give only a moderate pull at their visible cloud tops because they are made of light gases.
Related tools
The Density Calculator links mass and volume, the Unit Converter changes kilograms, pounds and stone, the BMI Calculator and Ideal Weight Calculator look at body weight on Earth, and the Speed Calculator can help with space-distance puzzles. Weights shown are based on standard published surface gravity values and are rounded.
Features
- Eleven worlds including the Sun and Moon
- Kilograms, pounds or stone
- Surface gravity in m/s² for each
- Ratio compared with Earth
- Copy the full list
- Instant update as you type
- Runs in your browser
Frequently asked questions
Why would I weigh less on the Moon?
The Moon is much smaller than Earth, so its gravity at the surface is only about one sixth as strong, 1.62 metres per second squared compared with 9.81. A 70 kg person would feel as if they weighed about 11.6 kg there, although their mass would not change.
What is the difference between mass and weight?
Mass is how much matter you contain, measured in kilograms, and it is the same everywhere. Weight is the force of gravity acting on that mass. Scales usually show mass but actually measure weight, so on the Moon the same scale would show a smaller reading.
How is weight on another planet calculated?
Multiply your Earth weight by the planet's surface gravity and divide by Earth's 9.807 metres per second squared. For Mars, gravity is 3.71, so you would weigh 3.71 divided by 9.807, about 38 percent of your Earth weight.
What would I weigh on Jupiter?
About 2.5 times your Earth weight. Jupiter has no solid surface, so the figure is for the level in its atmosphere where the pressure equals Earth's sea-level pressure. A person of 70 kg would feel like 177 kg there.
Why is the Sun's gravity so high?
The Sun holds about 99.8 percent of the mass of the solar system, so gravity at its visible surface is about 28 times Earth's. Of course, you could not stand there, because the surface temperature is around 5,500 degrees Celsius.
Is Pluto a planet?
Pluto was reclassified as a dwarf planet in 2006, but it is still a favourite of weight charts. Its gravity is only about 6 percent of Earth's. Use it for fun alongside the eight planets.