Weight is a force, mass is not
Your mass is how much matter you are made of, measured in kilograms. Your weight is the force gravity exerts on that mass, measured in newtons. On Mars the matter stays the same, so your mass stays the same. The force drops because Mars is smaller and less massive than Earth.
How the calculation works
force (N) = mass (kg) × g
| Constant | Value used | Status |
|---|---|---|
| Mars surface gravity | 3.71 m/s² (approximate, varies slightly by location) | Fact |
| Standard Earth gravity | 9.80665 m/s² | Fact |
The "Earth scale would read" figure divides the Martian force by standard Earth gravity. That is what a scale calibrated on Earth would display. Example: 70 kg gives 259.7 N on Mars, which an Earth scale would show as about 26.48 kg.
What this tool does not tell you
It does not predict how high you could jump, how your bones or muscles would change, or how athletes would perform. Those depend on biology, suits and habitat design, and are open research questions.
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