♂︎ Mars · Calculator
Mars Sign Calculator
Enter your birth date to find the zodiac sign Mars was in when you were born. Your Mars sign is said to describe your drive, how you assert yourself and how you handle conflict.
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Good to know — Mars changes sign only about every six to seven weeks, so the time matters only on a changeover day. Astrology is for reflection and entertainment.
How the Mars sign calculator works
This Mars sign calculator works out where Mars stood in the sky on your birth date and places it in the matching zodiac sign. Mars takes about two years to circle the zodiac and spends six to seven weeks in a sign on average, longer during its retrograde phase. A date is usually enough; the time of day only matters on a changeover day.
What your Mars sign means
In astrology Mars stands for energy, willpower, courage and desire. Your Mars sign describes how you tackle things, how you assert yourself and what gets you moving. It also shows how you argue and how you experience passion.
Mars sign and sun sign
Unlike Venus, Mars can be in any sign of the zodiac, whatever your sun sign is. That is why your Mars sign is often a part of your personality that your sun sign alone does not explain.
Frequently asked questions
How do I find my Mars sign?
Enter your birth date in the calculator. It works out the sign Mars was in on that day. The time of birth only matters if Mars changed sign on your birthday.
What does the Mars sign mean?
It is read as your drive: how you pursue goals, assert yourself, argue and experience passion.
Can my Mars sign differ from my sun sign?
Yes, completely. Mars can be in any of the twelve signs, regardless of the sign the Sun was in when you were born.
How accurate is the calculation?
The calculator uses an astronomical approximation and places the sign reliably. On a day Mars changes sign, an inexact time can shift the result.
Is it free and private?
Yes. It is free, needs no sign-up and runs entirely in your browser; nothing you enter is stored or sent.