How Much Would You Weigh on Jupiter?

Enter your Earth weight to see how Jupiter's 2.5× gravity would crush you.

Frequently asked questions

Why is Jupiter's gravity so strong?

Jupiter has 318 times Earth's mass — by far the most massive planet in the solar system. Its surface gravity is "only" 2.5× Earth's instead of much higher because Jupiter is also enormous (11× Earth's radius), so the surface is far from the planet's centre of mass.

Could you actually stand on Jupiter?

No. Jupiter is a gas giant with no solid surface. The "surface" we use for gravity calculations is the cloud tops at 1 bar of atmospheric pressure. Below that, you'd sink through ever-denser gas, eventually reaching liquid metallic hydrogen, until you're crushed by pressures millions of times Earth's sea-level pressure.

What would happen to your body under Jupiter gravity?

At 2.5× Earth gravity, your circulatory system would struggle to pump blood to your head, your bones would experience their maximum sustainable load, and even sitting upright would be exhausting. Sustained exposure would be lethal.

How big is Jupiter compared to Earth?

Jupiter could contain 1,321 Earths by volume. Its Great Red Spot — a single storm — has raged for at least 350 years and is about 16,000 km wide, big enough to swallow Earth whole.

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How much would you weigh on Jupiter?

Jupiter has a surface gravity of 24.79 m/s², or 252.8% of Earth\'s. A 75 kg adult Earth weight becomes 189.6 kg Jupiter weight. That\'s pushing past the boundary of what human bones, muscles and cardiovascular systems can sustainably handle.

The biggest planet, but not the worst gravity

Jupiter is by far the most massive planet — 318 times Earth\'s mass, more than twice as much as all other planets combined. You\'d expect crushing gravity. The reason it\'s "only" 2.5× Earth\'s is that Jupiter is also enormous in radius. Surface gravity depends on mass divided by radius squared, so the planet\'s sheer size partially offsets its mass. The Sun, despite being a star, has surface gravity 28 times Earth\'s — far worse than Jupiter\'s.

What "surface" even means

You couldn\'t stand on Jupiter even if you survived the gravity, because there\'s no solid ground. Jupiter is a gas giant — mostly hydrogen and helium, with traces of ammonia, water and methane. Astronomers define its "surface" as the altitude where atmospheric pressure equals 1 bar (Earth sea level). Below that, you sink into hotter, denser gas. Roughly 20,000 km down, hydrogen becomes liquid; further down it becomes metallic. There\'s probably a small rocky core, but you\'d be vaporised by pressure and heat long before reaching it.

What 2.5g gravity does to a human body

  • Cardiovascular strain: your heart already works against gravity pumping blood upward to your brain. At 2.5g it would struggle severely — likely producing blackouts when standing.
  • Skeletal load: human bones can briefly tolerate 4–6g loads (think rollercoasters, fighter jets), but not sustained. 2.5g for hours would cause hairline fractures in load-bearing bones.
  • Muscle fatigue: simply holding your body upright would feel like carrying a person on your back, all day, every day.
  • Lung function: the diaphragm would have to push 2.5× harder to expand the lungs against the increased weight of abdominal contents.

The Great Red Spot

The most famous feature of Jupiter is the Great Red Spot — a single anticyclonic storm that has been spinning for at least 350 years (since astronomers started watching). It\'s currently about 16,000 km wide — larger than Earth — though it has been shrinking for the past century. Winds inside reach 400 km/h. If you somehow visited Jupiter, this would be the most violent weather system in the solar system to navigate around.

Jupiter vs the rest

If Jupiter\'s gravity sounds rough, see how it compares to the gentle Moon (16.5% Earth) or friendly Mars (37.9%). Or get the whole solar-system overview on the all-planet weight calculator.