🌍 Your Weight in the Solar System
Enter your weight on Earth to see how gravity changes across space.
| Object | Gravity Compared to Earth |
|---|---|
|
Mercury
|
38% |
|
Venus
|
90% |
|
Moon
|
17% |
|
Mars
|
38% |
|
Jupiter
|
236% |
|
Saturn
|
106% |
|
Uranus
|
89% |
|
Neptune
|
112% |
|
Pluto
|
6% |
Mass vs. Weight: What Is the Difference?
Your mass is the amount of matter in your body, and it does not change whether you are standing on Earth, walking on Mars, or floating in space.
Your weight is different because it depends on gravity. Gravity is the force that pulls objects toward the surface of a planet or moon.
The basic formula is:
Weight = Mass × Gravity
Earth has a gravity of about 9.8 m/s², which is used as the reference point for comparing other worlds.
Why Would You Weigh Less on the Moon and Mars?
The Moon has only about one-sixth of Earth’s gravity. This means a person weighing 90 kg on Earth would weigh around 15 kg on the lunar surface.
Mars has about 38% of Earth’s gravity. Future astronauts visiting Mars would feel much lighter, but the reduced gravity could also create challenges for long-term human health.
Why Would You Weigh More on Jupiter?
Jupiter is the largest planet in our solar system and has much stronger gravity than Earth. A person weighing 80 kg on Earth would feel like they weigh almost 190 kg on Jupiter.
Jupiter does not have a solid surface to stand on, but scientists can still calculate the gravitational effect near the level where atmospheric pressure is similar to Earth’s.
How Does This Calculator Work?
The calculator multiplies your Earth weight by the gravity factor of each planet or moon.
For example:
- Mars: Earth weight × 0.38
- Moon: Earth weight × 0.17
- Jupiter: Earth weight × 2.36
The results show how your body would experience gravity in different environments across the solar system.
Why Is Planetary Gravity Important?
Gravity plays a major role in space exploration. Spacecraft, rockets, and future missions to the Moon and Mars must account for different gravitational conditions when planning launches, landings, and movement on other worlds.
Understanding gravity helps scientists and engineers design missions beyond Earth.
No. Your mass stays exactly the same everywhere. Only your weight changes because gravity is different.
You would weigh the least on Pluto, which has only about 6% of Earth’s gravity.
Among the planets, you would weigh the most on Jupiter because of its powerful gravity.
Humans could potentially live on lower-gravity worlds, but long-term exposure to reduced gravity may affect muscles, bones, and overall health.
The calculator uses established gravity values for each planet and major solar system object, making the results a reliable estimate of how gravity would affect your weight.