Weight on Planets Calculator
| Body | Gravity (m/s²) | Your weight (kg) |
|---|---|---|
| Mercury | 3.7 | – |
| Venus | 8.9 | – |
| Earth | 9.8 | – |
| Moon | 1.6 | – |
| Mars | 3.7 | – |
| Jupiter | 23.1 | – |
| Saturn | 9.0 | – |
| Uranus | 8.7 | – |
| Neptune | 11.0 | – |
| Pluto | 0.7 | – |
Your mass never changes anywhere in the universe - but the floor pushes back differently. This calculator takes your Earth weight and shows your scale reading on all ten worlds, using the surface gravities NASA publishes on its NSSDC fact sheet: from 0.7 m/s² on Pluto to 23.1 m/s² on Jupiter.
The classics hold: the Moon at one-sixth gravity, Mars at about a third - and the surprise is Jupiter, 318 Earth masses, adding only a factor of 2.36 because its cloud-top surface sits enormously far from its center.
How to use
- Enter your weight in kilograms; the ten-row table updates live with your reading on every world.
- Compare the extremes: a 70 kg visitor weighs 11.7 kg on the Moon and 165.4 kg on Jupiter.
- Remember the units: this is the scale reading your bathroom scale would show - mass itself is unchanged.
Frequently asked questions
Would I really weigh less on Saturn than on Earth?
Almost the same: Saturn’s gravity is 9.0 m/s² versus Earth’s 9.8, so a 70 kg visitor reads 64.3 kg - despite the planet being 95 Earth masses. Its enormous radius puts the cloud tops far from the center; Saturn is also less dense than water.
Why do scales show kilograms if they measure weight?
Bathroom scales measure force but display the mass that force implies at Earth gravity. On Mars the same spring compresses a third as much - the display would read about 23 kg for a 70 kg person, though their mass stayed 70 kg. Physicists would read the scale in newtons.
Where in the solar system would I feel heaviest?
Jupiter’s cloud tops at 23.1 m/s² - 2.36 times Earth - with no close second among planets. The Sun itself would multiply your weight by 28, and neutron stars by about a hundred billion; the calculator stops at Pluto because gas-giant interiors have no surface to stand on.
Does this affect how high I could jump?
Enormously: jump energy is fixed, so jump height scales inversely with gravity. The same leg push that lifts you 50 cm on Earth lifts you about 3 meters on the Moon and 21 cm on Jupiter - which is why astronauts chose hopping over walking on Apollo.