Space Birthday

Do you know how many Mars years old you are?


If you were born on Mars, how old would you be today? Or how many times has Jupiter gone around the sun since you were born? What's your age in Venusian years? This page can tell you! Enter your and your friends' birthdays using the form below. The information will only be stored on this computer, not on the server, so don't worry! (PS - I also have some printable space birthday worksheets you can download if you want to do these calculations yourself.)

  • Your/your friend's name:
  • Your/your friend's birthday:
You need to enter the year correctly - your Jupiter birthday doesn't fall on the same day each year, in fact most years you don't even have one!

Isaac Newton's Birthdays

Isaac Newton, amongst many other discoveries, developed a theory of gravity that helped explain how the planets move in their orbits. Links: Wikipedia, Other Celebrity Space Birthdays

 Isaac Newton turns 381 Earth years old on the 25th December, 2023.
 Isaac Newton turns 1582 Mercury years old on the 4th January, 2024.
 Isaac Newton turns 620 Venus years old on the 30th May, 2024.
 Isaac Newton turns 203 Mars years old on the 18th October, 2024.
 Isaac Newton turns 13 Saturn years old on the 7th December, 2025.
 Isaac Newton turns 33 Jupiter years old on the 6th May, 2034.
 Isaac Newton turns 5 Uranus years old on the 9th August, 2064.
 Isaac Newton turns 3 Neptune years old on the 14th May, 2137.

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