Orbital Speed of a Satellite Calculator

The orbital speed of a body, a satellite or a star, is the speed at which it orbits around the barycenter of a system. Here is a useful geophysics orbital speed of a satellite calculator to know the orbital speed of Earth, satellite or any other planet. Calculate the orbital speed of earth using its semi major axis length and orbital period values.

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The orbital speed of planets is calculated based on Kepler's second law of planetary motion. Planets that are close to the Sun have large orbital velocities. Mercury is the fastest moving planet in our solar system moving at about 48 km/sec. In this online orbital speed of a satellite calculator, enter the required details to know the orbital speed.