Age on Other Planets
Enter your birth date to see how old you are on Mercury, Mars, Jupiter, Saturn and beyond — with your next birthday on each planet. Uses NASA orbital data.
Calculating…
How old am I on Mars?
A Martian year is about 687 Earth days, so your Mars age is roughly half your Earth age. A Mars day (a "sol") is close to ours: 24h 37m.
A year on Mars lasts 686.98 Earth days (about 1.88 Earth years), so your Mars age is simply your age in Earth days divided by 686.98. Enter your birth date above to see it, plus the date of your next Mars birthday. A day on Mars (one rotation) lasts about 24.6 Earth hours.