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!

Neil Armstrong's Birthdays

Neil Armstrong was the first human being to set foot on the moon. Links: Amazon, Wikipedia, NASA, Other Celebrity Space Birthdays

 Neil Armstrong turns 94 Earth years old on the 5th August, 2024.
 Neil Armstrong turns 50 Mars years old on the 20th August, 2024.
 Neil Armstrong turns 153 Venus years old on the 19th September, 2024.
 Neil Armstrong turns 391 Mercury years old on the 6th October, 2024.
 Neil Armstrong turns 8 Jupiter years old on the 20th June, 2025.
 Neil Armstrong turns 4 Saturn years old on the 3rd June, 2048.
 Neil Armstrong turns 1 Neptune year old on the 21st May, 2095.
 Neil Armstrong turns 2 Uranus years old on the 29th March, 2099.