Escape Velocity Calculator
Calculate escape velocity, orbital velocity, and gravitational parameters for celestial bodies.
Inputs
Earth Masses
Earth Radii
Earth Radii
Results
Escape Velocity
11.19 km/s
Orbital Velocity
7.91 km/s
Escape from Orbit11.19 km/s
Surface Gravity9.82 m/s²
Schwarzschild Radius0.009 m
How to Use This Calculator
- Enter the Mass (Earth masses) of the body — Earth is 1, Mars is 0.107, Jupiter is 317.8.
- Enter the Radius (Earth radii) of the surface or object — Earth is 1, the Moon is 0.27.
- Set the Orbital Distance (Earth radii) from the center for computing circular orbital velocity at that altitude.
- Read Escape Velocity (km/s): Earth's surface value is 11.2 km/s; this is the speed needed to leave the body entirely.
- Note the Schwarzschild Radius (m) output — if the object's physical radius were compressed to this size it would become a black hole.
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Formula
v_escape = √(2GM/r)Related Calculators
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