How old am I on Mars?
Mars takes about 687 Earth days to orbit the Sun, so a Martian year is much longer than an Earth year. That means your numerical age in Martian years is lower than your age on Earth.
Use the calculator
The quickest way to get a personalised result is to use the related interactive tool. Your result is calculated from the values you enter.
What to keep in mind
These tools are designed for curiosity and general information. Where a calculation uses an approximation, the tool explains that assumption. Historical pages can rely on external public datasets that may change over time.