Planet Gravity Calculator
Calculate surface gravitational acceleration of a planet from its mass and radius.
How to Use the Planet Gravity Calculator
- Enter the planet mass in kilograms.
- Enter the planet radius in metres.
- Click Calculate.
- Review surface gravity in m/s² and relative to Earth.
使用场景
- •Exoplanet research
- •Planetary science
- •Space exploration planning
公式
g = GM / r²
常见问题
How accurate is this calculator?
Results are based on standard scientific formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, seconds) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.