Space Age Explorer is a free planetary age calculator. Find your age on Mercury, Mars, Jupiter, and beyond while exploring space facts.
Your age varies on different planets because each planet takes a different amount of time to orbit the Sun (a year). For example, Earth takes 365.25 days to complete one orbit, while Mercury takes only about 88 Earth days. This means that if you were on Mercury, you'd experience many more years in the same amount of time!
The calculator uses each planet's orbital period (the time it takes to go around the Sun) relative to Earth's to calculate your age.