Free · Your age on another world
Alien Year Age Calculator
Type your Earth age and count how many trips you would make around another star.
- Clear, kid-friendly steps
- Private in your browser
- No signup
Worlds beyond our Sun
Count your age in alien years
On Kepler-452 b, you would be9.5 years old
Cygnus
Kepler-452 b
Orbits Kepler-452384.84 Earth days per year
Its year is only about 20 days longer than an Earth year.
- Distance
- 1,402 light-years
- Found by
- transit
- Size
- 1.67× Earth
Powered by Open Exoplanet Catalogue (curated subset), an open-source library available under MIT.
Three simple steps
How to use it
- Pick a real planet that circles a star beyond our Sun.
- Compare its size, year, heat, distance, or discovery date.
- Try another world and see how different it can be.
Private by default
Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.