See how much you would weigh on the Moon, Mars, Jupiter and every planet in the solar system.
Weight is the force of gravity on a mass. On Earth, a 70 kg person weighs 70 kg because we define the kilogram-force that way — but on the Moon, where gravity is about one-sixth of Earth's, the same person weighs about 11.5 kg. The mass does not change; the gravitational pull does.
The surface gravity of a celestial body depends on its mass and its radius: g = GM/r². Jupiter is 318 times more massive than Earth but also much larger, so its surface gravity is about 2.5 times Earth's, not 318 times. The Moon is small and light, giving it a sixth of Earth's gravity. This table uses the accepted surface gravity values for each body.
Pluto is included despite its demotion to dwarf planet in 2006, because people search for it. The Sun is included for perspective — a 70 kg person on the Sun's surface would weigh about 1,953 kg, which is why the surface of the Sun is not a place you visit. Titan, Europa and Ganymede are moons of Saturn and Jupiter that are sometimes discussed as places humans might one day walk.
Weight on body X = (Earth weight / 9.81) × g_X, where g_X is the surface gravity of body X in m/s².
Weight — the force of gravity on your body, expressed in kilograms-force for familiarity. Your mass (in kg) does not change; your weight does because gravity changes.
Because surface gravity depends on both mass and radius. Jupiter is much larger than Earth, so you stand farther from its centre, which dilutes the gravitational pull.
Astronauts on the ISS experience microgravity — not zero gravity — because they are in free fall around the Earth. The gravity at ISS altitude is about 90% of surface gravity; the apparent weightlessness comes from the orbit, not from the distance.
Not in this tool — the values are fixed to the accepted figures for each body. For a custom gravity, use the free fall calculator and work backwards from the weight.
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