Weight on Other Planets Calculator
How much would you weigh on Mars, the Moon or Jupiter? Enter your weight on Earth in kilograms or pounds and see your weight on the Moon, the Sun, all eight planets and Pluto, based on each body's surface gravity, with a table, a bar chart and how high you could jump.
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How to use the Weight on Other Planets Calculator
- Enter your weight on Earth and choose kg or lb.
- Pick a body to highlight, such as the Moon or Mars.
- Optionally enter how high you can jump on Earth, in centimeters.
- Read your weight on the highlighted body and the others in the table.
- Compare the planets in the bar chart and copy or download the results.
The formula
Weight on a planet = Earth weight × (planet's surface gravity ÷ 9.80665 m/s²)
Weight as a force is W = m × g (mass in kg × gravity in m/s² = newtons). A 70 kg person weighs 686 N on Earth and 113 N on the Moon, which a scale calibrated for Earth would show as about 11.6 kg.
Surface gravity across the solar system
| Body | Surface gravity (m/s²) | × Earth | 70 kg reads as | 150 lb reads as |
|---|---|---|---|---|
| Sun | 274.0 | 27.94 | 1,955.8 kg | 4,191.0 lb |
| Mercury | 3.70 | 0.377 | 26.4 kg | 56.6 lb |
| Venus | 8.87 | 0.904 | 63.3 kg | 135.7 lb |
| Earth | 9.81 | 1.000 | 70.0 kg | 150.0 lb |
| Moon | 1.62 | 0.165 | 11.6 kg | 24.8 lb |
| Mars | 3.72 | 0.379 | 26.6 kg | 56.9 lb |
| Jupiter | 24.79 | 2.528 | 177.0 kg | 379.2 lb |
| Saturn | 10.44 | 1.065 | 74.5 kg | 159.7 lb |
| Uranus | 8.69 | 0.886 | 62.0 kg | 132.9 lb |
| Neptune | 11.15 | 1.137 | 79.6 kg | 170.5 lb |
| Pluto | 0.62 | 0.063 | 4.4 kg | 9.5 lb |
Jupiter, Saturn, Uranus and Neptune have no solid surface; their values are measured where the atmospheric pressure is 1 bar. Want to know your age in other planets' years too? Try the age on other planets calculator.
Fun facts
- On the Moon you could jump about 6 times higher than on Earth, which is why astronauts bounced as they walked.
- Mars and Mercury have almost the same surface gravity, even though Mars is much larger, because Mercury is very dense.
- On Pluto, a 70 kg person would weigh about as much as a 4.4 kg bag of flour does on Earth.
Frequently asked questions
How do you calculate your weight on another planet?
Multiply your Earth weight by the ratio of the body's surface gravity to Earth's (9.81 m/s²). On Mars, gravity is about 3.72 m/s², so a 70 kg person would read 70 × 3.72 ÷ 9.81 ≈ 26.6 kg on a bathroom scale calibrated for Earth.
Does my mass change on other planets?
No. Mass is the amount of matter in your body and is the same everywhere. Weight is the force of gravity on that mass (mass × gravity, measured in newtons), so it changes from world to world. Scales show weight converted to kg or lb assuming Earth gravity.
Where would I weigh the most and the least?
Of the planets, you would weigh the most on Jupiter (about 2.5 times your Earth weight) and the least on Mercury or Mars (about 38%). Pluto is lighter still at about 6%, and on the Sun's visible surface you would weigh about 28 times as much.
How can you stand on Jupiter or Saturn?
You can't: the gas and ice giants have no solid surface. Their 'surface gravity' is measured at the altitude where atmospheric pressure equals 1 bar, about the pressure at sea level on Earth. The values are useful for comparison only.
Why is Saturn's gravity close to Earth's when it is so much bigger?
Surface gravity depends on mass divided by radius squared. Saturn has about 95 times Earth's mass but over 9 times the radius, and it has a low density, so the two effects almost cancel and its gravity at the 1-bar level is only about 6% stronger than Earth's.
Where do the gravity values come from?
They are standard equatorial surface gravity values from NASA planetary fact sheets and common reference tables, for example 1.62 m/s² for the Moon and 24.79 m/s² for Jupiter. Gravity varies slightly with latitude and altitude on each body.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.