Weight is the force of gravity on your mass. Smaller bodies such as the Moon pull far less.
How to use the Weight on Other Planets Calculator
- Your weight on Earth
- Planet or moon
Results update as you type, and every field accepts the units shown in its menu.
How it works
Your Earth weight is converted to mass, then multiplied by the surface gravity of the chosen body.
Inputs explained
| Field | What to enter |
|---|---|
| Your weight on Earth | Units: kg, lb, g, oz, st |
| Planet or moon | Choose one: Moon (1.62 m/s²), Mercury (3.70), Venus (8.87), Mars (3.721) … |
What each result means
- Equivalent scale reading = [Your weight on Earth] × [Planet or moon] ÷ 9.80665
- Weight force = [Your weight on Earth] × [Planet or moon]
- Compared with Earth = [Planet or moon] ÷ 9.80665 × 100
Example values
How the main result changes when Your weight on Earth changes and everything else stays at the example values above:
| Your weight on Earth (kg) | Equivalent scale reading (kg) |
|---|---|
| 35 | 13.3 |
| 52.5 | 19.9 |
| 70 | 26.6 |
| 87.5 | 33.2 |
| 105 | 39.8 |
| 140 | 53.1 |
Formula
Weight = mass × surface gravityWorked example
Inputs — Your weight on Earth: 70 kg; Planet or moon: Mars (3.721).
Results — Equivalent scale reading = 26.6 kg; Weight force = 260.5 N; Compared with Earth = 37.9 %.
Key terms
- Surface gravity
- Gravitational acceleration at a body’s surface.
Frequently asked questions
Does my mass change on Mars?
No, only the force of gravity on it changes.
Why do gas giants have “surface” gravity?
It is quoted at the altitude where pressure equals 1 bar.
What formula does the Weight on Other Planets Calculator use?
Weight = mass × surface gravity.