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Planets - Calculate Escape Velocity

Calculator for the escape velocity of objects like rockets from Earth, Moon, Sun and planets, in km/h, m/s, mph and compared to each other. The escape velocity or second cosmic velocity is the speed an object needs at least to escape the gravity of a celestial body, to fly away from it without falling down or getting into an orbit. It is calculated as √2 * circular velocity.

Kilometers per hour:
Meters per second:
Miles per hour:

Escape Velocity
Moon:
Mercury:
Venus:
Earth:
Mars:
Jupiter:
Saturn:
Uranus:
Neptune:
Pluto:
Sun:



Round to    decimal places.

Example: a space ship, which is orbiting Earth and then accelerates above 11.2 kilometers per second, will leave Earth in a hyperbolic trajectory.


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German: Planeten-Entfernungen, Planeten-Massen, Planeten-Durchmesser, Planeten-Umfang, Planeten-Oberfläche, Planeten-Volumen, Planeten-Dichte, Gravitation, Tageslänge, Rotation, Orbit (Jahr), Geschwindigkeit, Kreisgeschwindigkeit, Fluchtgeschwindigkeit, Temperatur