Age on other planets
Your age is just laps around the Sun. Swap Earth's orbit for another planet's and see how old you'd be there — and when your next birthday lands.
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On Earth you are
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Every world
| Planet | Your age | Its year | Next birthday |
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How this works
One birthday = one trip around the Sun. Mercury races round in just 88 Earth days, so it racks up birthdays fast; Neptune takes 165 Earth years, so almost nobody gets even one Neptunian birthday. We take the exact Earth days you've been alive and divide by each planet's orbital period (its year length in Earth days). Pluto's here too — dwarf planet or not, it was too fun to leave out.