# Calculate Your Age in Mars-years

## Question:

How old are you in Mars-years?

## Answer:

To calculate your age in Mars-years, you need to follow these steps:

**Step 1:**Calculate how many Earth days old you are.**Step 2:**Divide that number by the number of days it takes Mars to complete an orbit.**Step 3:**Explain your answer.

Well, 365 days is about how long it takes for Earth to orbit all the way around the Sun one time. It's not exactly this simple though. An Earth year is actually about 365 days, plus approximately 6 hours.

## Step 1: Calculate how many Earth days old you are.

To calculate how many Earth days old you are, you need to know your age in years and then multiply it by 365, which is the number of days it takes for Earth to complete one orbit around the Sun.

For example, if you are 30 years old: 30 years x 365 days = 10,950 days old on Earth.

## Step 2: Divide that number by the number of days it takes Mars to complete an orbit.

It takes Mars approximately 687 Earth days to complete one orbit around the Sun. To find your age in Mars-years, divide the number of Earth days old you are by 687.

Continuing with the example above: 10,950 Earth days / 687 Mars days = 15.93 Mars-years old.

## Step 3: Explain your answer

While Earth takes 365 days to complete one orbit around the Sun (one year), Mars takes about 687 days. Therefore, if you were to live on Mars with a year that is about 687 days long, your age in Mars-years would be approximately 15.93 at 30 Earth years old.