Satellite Orbital Velocity Calculator

v = sqrt(GM / r)

Orbital Altitude (km)

Central Body

Formula

v = sqrt(GM / r)

What is orbital velocity?

The speed needed to maintain a circular orbit. For low Earth orbit it is about 7.8 km/s.

What is escape velocity?

The minimum speed to escape a body gravitational pull. It is sqrt(2) times the orbital velocity.

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