Calculations
The "magic" behind this tool
How to calculate your age other planets? It's not that hard. Use planet data from the table and apply it, along with your age, to the equations below.
| Planet | Rotation | Revolution |
|---|---|---|
| Mercury | 58.6 days | 0.2408 years |
| Venus | 243 days | 0.61562 years |
| Earth | 1 days | 1 years |
| Mars | 1.025 days | 1.8809 years |
| Jupiter | 0.41 days | 11.862 years |
| Saturn | 0.45 days | 29.458 years |
| Uranus | 0.72 days | 84.01 years |
| Neptune | 0.67 days | 164.79 years |
| Pluto | 6.39 days | 248.54 years |
To calculate years
Convert your age in years to decimals (ex: if you're 20 years and 6 months old, in decimals it's 20.5), then divide it by the time it takes the planet to go around the Sun. For Mercury, it would be:
20.5 / 0.2408 = 85.13 years
To calculate days
Convert your age to days - multiply your decimal age by 365.25. Following the previous example:
20.5 * 365.25 = 7487.6 days
Next, divide that number by the planet's spin duration:
7487.6 / 58.6 = 127.8 days
We can help with that
Just enter your birthdate into our app, we'll calculate for you.