Uni-Sine

Kepler's Third Law Calculator

Physics calculator

Kepler's Third Law Calculator

Relate how long an orbit takes to how big it is with Kepler's third law, for planets, moons and satellites.

What you can do

  • Orbital period from the orbital radius
  • Orbital radius from the period
  • Every answer worked through step by step
  • A graph of period against orbital radius
  • Practice problems and a formula sheet