Orbital Speed Calculator

v = √(GM/r) — circular orbital velocity at any altitude above any body.

Central body

Altitude above surface (km)

LEO (Low Earth Orbit)

Circular orbital speed7.6678 km/s

Orbital radius6779 km

Orbital speed (m/s)7667.8 m/s

Orbital speed (km/s)7.6678 km/s

Orbital speed (km/h)27604 km/h

Escape velocity (km/s)10.844 km/s

Orbital period1.543 h

Common orbits: