Circular Orbit Velocity & Period Calculator

Enter the orbit altitude to see the satellite's speed, orbital period and number of orbits per day.

200 km36,000 km
km
Orbital velocity (km/s)7.59
Orbital velocity (km/h)27,320
Orbital period (minutes)95.5
Orbits per day15.1
Escape velocity at this altitude (km/s)10.73
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The calculation assumes a circular Keplerian orbit with μ = 398,600.44 km³/s²; atmospheric drag, J2 and other perturbations are ignored. For education and preliminary design.

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