Enter the number of Earth days or Mars days into the calculator to determine the equivalent number of days on the other planet.
Earth Days to Mars Days Formula
The following formula is used to convert Earth days to Mars days and vice versa.
M = E * (24 / 24.6597)
Variables:
- M is the number of Mars days
- E is the number of Earth days
- 24 is the number of hours in an Earth day
- 24.6597 is the number of hours in a Martian sol (Mars solar day)
To convert Earth days to Mars days, multiply the number of Earth days by the ratio of the length of an Earth day to the length of a Martian sol. To convert Mars days to Earth days, divide the number of Mars days by the same ratio.
| Earth Days | Mars Days (sols) |
|---|---|
| 1/16 | 0.060828 |
| ⅛ | 0.121656 |
| 1/6 | 0.162208 |
| ¼ | 0.243312 |
| ⅓ | 0.324416 |
| ⅜ | 0.364968 |
| ½ | 0.486624 |
| ⅝ | 0.608280 |
| ⅔ | 0.648832 |
| ¾ | 0.729936 |
| ⅞ | 0.851592 |
| 1 | 0.973248 |
| 1¼ | 1.216560 |
| 1⅓ | 1.297664 |
| 1½ | 1.459872 |
| 1¾ | 1.703184 |
| 2 | 1.946496 |
| 2½ | 2.433120 |
| 3 | 2.919744 |
| 4 | 3.892992 |
| *Assumes 1 Martian sol = 24.6597 hours. Conversion used: 1 Earth day ≈ 0.973248 Mars days (sols). | |
What is an Earth Day?
An Earth day is the period of time it takes for the Earth to complete one full rotation on its axis, which is approximately 24 hours. This period defines the length of a day on Earth and is used as a standard unit of time measurement.
What is a Mars Day?
A Mars day, also known as a "sol," is a Martian solar day (the time between successive noons on Mars). A sol is approximately 24.6597 hours long (about 24 hours 39 minutes 35 seconds), which is slightly longer than an Earth day. This period defines the length of a day on Mars.
How to Calculate Earth Days to Mars Days?
The following steps outline how to calculate the conversion between Earth days and Mars days.
- First, determine the number of Earth days (E).
- Next, use the conversion factor to calculate the equivalent number of Mars days (M).
- Use the formula M = E * (24 / 24.6597) to find the number of Mars days.
- To convert Mars days to Earth days, use the formula E = M / (24 / 24.6597).
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Number of Earth days (E) = 10
Number of Mars days (M) = 9.7325