Gravity Calculator
Compute surface gravity g = GM/R² for a planet/body.
Input Data
Mode
M
R
Results
g = GM/R².
9.8067
Explanatory note.
地球表面標準重力加速度 g ≈ 9.80665 m/s²（取 9.81）。
At a glance:g = G·M/R² at the surface. Complements gravitational-force and escape-velocity.
Formula
g = G·M / R².
How to Use
- Enter mass and radius (or a ratio).
- The tool returns g.
Case Studies
Moon M=7.35e22, R=1.74e6
g ≈ 1.62 m/s².
FAQ
Earth g?
≈ 9.81 m/s².
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.