How This Works

Your age is calculated based on the orbital period (year length) of each planet. Since planets orbit the Sun at different speeds, your age would be different on each planet.

For example, Mercury completes an orbit around the Sun in just 88 Earth days, so if you were 30 Earth years old, you'd be about 124 Mercury years old!

Note: This calculator uses the orbital period of planets only. For dwarf planets like Pluto, the calculation is included for fun but is not part of the main planetary group.