At Jupiter’s cloud tops, you would weigh 253% of your weight on Earth. Multiply your Earth weight by 2.53: a 70 kg person would read 177 kg, and a 154 lb person 390 lb. That is 2.53 times as heavy as on Earth. Your mass does not change; only the pull on it does.
The surface gravity is 24.8 m/s² against 9.81 m/s² on Earth. It is measured at the 1-bar level, because there is no solid surface to measure from. Weight is mass times local gravity, W = m × g, so the scale reading is your Earth reading times 2.53.
Weight at Jupiter’s cloud tops by Earth weight
Each row is a person’s Earth weight and what the same person reads at Jupiter’s cloud tops. The pounds column converts the kilograms (1 kg = 2.20462 lb); the ratio 2.527 is the same for any unit.
| On Earth | At Jupiter’s cloud tops (kg) | At Jupiter’s cloud tops (lb) |
|---|---|---|
| 40 kg (88.2 lb) | 101 kg | 223 lb |
| 50 kg (110 lb) | 126 kg | 279 lb |
| 60 kg (132 lb) | 152 kg | 334 lb |
| 70 kg (154 lb) | 177 kg | 390 lb |
| 80 kg (176 lb) | 202 kg | 446 lb |
| 90 kg (198 lb) | 227 kg | 501 lb |
| 100 kg (220 lb) | 253 kg | 557 lb |
Calculated as weight × 24.8 ÷ 9.81. A bathroom scale calibrated on Earth would show these values.
Why gravity is 24.8 m/s² at Jupiter’s cloud tops
Surface gravity follows from the body’s mass M and its radius R: g = G M ÷ R². The simulation uses a radius of 71,490 km at the 1-bar level, which with g = 24.8 m/s² corresponds to a mass of 318 Earth masses.
Jupiter has no surface, so the 24.8 m/s² figure is measured at the level where the pressure is 1 bar, about the same as air at sea level on Earth. Go higher and the pull weakens; go lower and you are inside a planet that gets hotter and denser until the hydrogen stops behaving like a gas.
Jupiter holds 318 Earth masses, more than twice all the other planets put together, yet the pull at the cloud tops is only 2.53 times Earth’s. The reason is radius: gravity weakens with the square of the distance from the centre, and you are standing about 11.2 Earth radii from it. The one probe to go in, Galileo’s in 1995, sent data until the pressure reached about 22 bar.
A jump and a fall at Jupiter’s cloud tops
Gravity sets more than weight. The take-off speed that lifts you 50 cm on Earth would raise you 19.8 cm at Jupiter’s cloud tops, in a jump lasting 0.253 s against 0.639 s on Earth. A ball dropped from 2 m takes 0.402 s to land, compared with 0.639 s on Earth.
Escape speed, the speed at which you leave for good, is 59.5 km/s, against 11.2 km/s for Earth. It does not depend on your mass.
Compare with other worlds
For a 70 kg person, here is the pull and the scale reading on each body in the simulation. Select one to get its own page.
| Body | Gravity | A 70 kg person reads |
|---|---|---|
| Mercury | 3.7 m/s² | 26.4 kg |
| Venus | 8.87 m/s² | 63.3 kg |
| The Moon | 1.62 m/s² | 11.6 kg |
| Mars | 3.71 m/s² | 26.5 kg |
| Jupiter | 24.8 m/s² | 177 kg |
| Saturn | 10.4 m/s² | 74.5 kg |
| Uranus | 8.87 m/s² | 63.3 kg |
| Neptune | 11.2 m/s² | 79.6 kg |
| Pluto | 0.62 m/s² | 4.42 kg |
| The Sun | 274 m/s² | 1,960 kg |
| Neutron star | 1.3×10¹² m/s² | 9.2 trillion kg |
This page is one case from the full guide, Weight on other planets, which covers every case, the assumptions behind the model and what it leaves out.
Other cases
- Mercury 70 kg reads 26.4 kg
- Venus 70 kg reads 63.3 kg
- The Moon 70 kg reads 11.6 kg
- Mars 70 kg reads 26.5 kg
- Saturn 70 kg reads 74.5 kg
- Uranus 70 kg reads 63.3 kg
- Neptune 70 kg reads 79.6 kg
- Pluto 70 kg reads 4.42 kg
- The Sun 70 kg reads 1,960 kg
- Neutron star 70 kg reads 9.2 trillion kg
Frequently asked questions
How much does a 70 kg person weigh at Jupiter’s cloud tops?
177 kg (390 lb). The ratio to Earth is 2.53, from g = 24.8 m/s² against 9.81 m/s².
Does my mass change at Jupiter’s cloud tops?
No. Mass is the amount of matter in you and stays the same everywhere. Weight is the force gravity puts on that mass, so it is the weight that changes, to 253% of its Earth value.
How do I work out my weight at Jupiter’s cloud tops?
Multiply your Earth weight by 2.53. In kilograms or pounds the answer comes out in the same unit, because the ratio has no unit.
Could anyone stand at Jupiter’s cloud tops?
No. There is no solid surface: the gravity figure is taken at the 1-bar level, so it describes the pull at the cloud tops, not a place to stand.
Part of the learning path Gravity and motion, from a thrown ball to a planet.
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