Kepler's Third Law states that The squares of the orbital periods of planets are directly proportional to the cubes of the semi-major axis of the orbits. Related Calculator: >> Newton's Law Calculator. >> Gravitational Acceleration Calculator. >> Escape Velocity / Speed Calculator. Related Articles: >> How to calculate Planetary Motion using Kepler's Third Law.(A simple tutorial) >>How to calculate Newton's Law of Gravity. >> How to calculate Gravitational Acceleration. >> How to calculate Escape Velocity / Speed.
