How much would I weigh on Mars?

On Mars, you would weigh about 38% of your Earth weight due to Mars' lower gravity (3.71 m/s2 compared to Earth's 9.81 m/s2). For example, a 150-pound person would weigh only about 57 pounds on Mars.

Why do I weigh less on the Moon?

The Moon has much weaker gravity than Earth (1.62 m/s2 vs 9.81 m/s2), which is about 16.5% of Earth's gravity. This means you would weigh about 6 times less on the Moon. A 180-pound person would weigh only about 30 pounds on the Moon.

What planet would I weigh the most on?

Among the planets, you would weigh the most on Jupiter, which has a surface gravity of 24.79 m/s2 - about 2.5 times stronger than Earth. A 150-pound person would weigh approximately 379 pounds on Jupiter.

Does my mass change on different planets?

No, your mass never changes regardless of where you are in the universe. Mass is the amount of matter in your body. Only your weight changes because weight is the force of gravity acting on your mass. Weight = Mass x Gravity.

Weight on Different Planets Calculator | Your Weight on Mars, Jupiter, Moon

Our Solar System

Sun

Enter Your Weight or Mass

Find out how much you would weigh on every planet, moon, and dwarf planet in our solar system.

Surface Gravity Reference Chart

Celestial Body	Type	Gravity (m/s2)	Relative to Earth
Sun	Star	274	27.931x
Jupiter	Planet	24.79	2.527x
Neptune	Planet	11.15	1.137x
Saturn	Planet	10.44	1.064x
Earth	Planet	9.81	1x
Venus	Planet	8.87	0.904x
Uranus	Planet	8.69	0.886x
Mars	Planet	3.71	0.378x
Mercury	Planet	3.7	0.377x
Io	Moon	1.8	0.183x
Moon	Moon	1.62	0.165x
Ganymede	Moon	1.43	0.146x
Titan	Moon	1.35	0.138x
Europa	Moon	1.31	0.134x
Callisto	Moon	1.24	0.126x
Triton	Moon	0.78	0.08x
Pluto	Dwarf	0.62	0.063x
Ceres	Dwarf	0.27	0.028x
Enceladus	Moon	0.11	0.011x

Understanding Weight on Different Planets

Ever wondered how much you would weigh on Mars or Jupiter? Our weight on different planets calculator lets you explore the gravitational differences across our solar system and beyond.

Why Does Weight Change on Different Planets?

Weight depends on two factors: your mass and the gravitational acceleration of the celestial body. The formula is:

Weight = Mass x Gravity (W = mg)

Jupiter has the strongest gravity of any planet (24.79 m/s2), so you would weigh about 2.5 times more there. On the Moon, with only 1.62 m/s2, you would weigh about 6 times less than on Earth.

Weight vs Mass: What is the Difference?

Mass is the amount of matter in your body - it never changes regardless of location. Mass is measured in kilograms (kg).

Weight is the force of gravity acting on your mass. Weight is measured in Newtons (N) or pounds-force (lbf). Your weight changes depending on the gravitational pull of where you are.

On Earth, a 70 kg person weighs about 686 Newtons (154 lbs). On Mars, the same person would weigh only 260 Newtons (58 lbs)!

Interesting Weight Facts

Jupiter: You would weigh 2.5x more - walking would be extremely difficult
Moon: You could jump 6x higher than on Earth
Mars: At 38% Earth gravity, astronauts would feel much lighter
Sun: You would weigh 28x more (if you could stand on it!)
Pluto: You would weigh only 6% of your Earth weight

How is Surface Gravity Calculated?

Surface gravity depends on a celestial body's mass and radius:

g = GM / r2

Where G is the gravitational constant, M is the mass of the planet, and r is its radius. This is why Jupiter, despite being mostly gas, has such strong surface gravity - its enormous mass creates a powerful gravitational pull.

Why Does This Matter for Space Exploration?

Understanding weight on different planets is crucial for:

Spacecraft Design: Landing systems must account for different gravity
Astronaut Health: Low gravity causes muscle and bone loss
Future Colonization: Mars gravity is 38% of Earth - significant for long-term health
Equipment Design: Tools and vehicles must work under different gravitational conditions