How to Calculate Planetary Weight
What is Planetary Weight?
Planetary weight calculator converts weight between planets using surface gravity ratios: W_planet = W_Earth × (g_planet / g_Earth).
Step-by-Step Guide
- 1Input Earth weight
- 2Select destination planet
- 3Calculate surface gravity ratio and resulting weight
Worked Examples
Input
100 kg on Earth
Result
Moon: 16.5 kg, Jupiter: 236 kg, Mars: 38 kg
Gravity varies dramatically
Common Mistakes to Avoid
- ✕Confusing weight and mass (mass is constant)
- ✕Using wrong planet gravity values
Frequently Asked Questions
Why does gravity vary between planets?
Mass and radius determine surface gravity: g = GM/R².
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