Orbital Calculator (Earth)
Calculate orbital velocity and period for a circular orbit around Earth based on altitude above the surface. Assumes a spherical Earth and neglects atmospheric drag.
Results:
Altitude
400.0 km / 248.5 mi
Orbital Velocity
7.672 km/s / 4.767 mi/s(7672.49 m/s)
Orbital Period
01:32:25 (HH:MM:SS)(5545 s)
Calculation Notes
- Calculations are for circular orbits around Earth.
- Assumes a perfectly spherical Earth with standard mass and radius.
- Does not account for atmospheric drag, gravitational anomalies, or perturbations from other celestial bodies.
- Velocity is the tangential speed required to maintain the circular orbit.
- Period is the time taken to complete one full orbit.