Your Mars sign is the zodiac sign Mars was in on the day you were born. In astrology it describes how you take action, what motivates you, how you handle anger and how you pursue desire. Enter your birth date above to see your Mars sign and its exact degree. Mars stays in one sign for about six weeks to seven months, so your birthday alone is almost always enough. It is free, needs no sign-up and has no ads.
- Free, with no sign-up and no ads.
- Computed in your browser with astronomy-engine, accurate to well under 1 degree.
- Shows the exact degree, element, modality and ruling planet.
- Flags birthdays when the planet changed sign, so you are never given the wrong one.
- Birth time and place are optional; your data stays in your browser.
- Save the result as a 9:16 share image.
Example reading
Input: Born 14 March 1994
Result: Mars in Pisces (about 5 degrees), with the Sun also in Pisces. This person's drive follows inspiration and feeling: they work hardest for causes and people they care about, and their energy rises and falls with their mood. Direct conflict drains them, so they may avoid a fight until it is unavoidable. Their growth edge is naming what they want out loud and protecting their energy instead of giving it all away.
What your Mars sign means
Mars is the planet of action, desire and courage. Its sign in your chart describes your natural way of going after things: fast or slow, open or strategic, alone or with others.
It also shows how you handle anger and conflict, what turns you on and how you compete. Someone with a gentle Libra Sun and an Aries Mars may seem easygoing but move fast and speak bluntly once they want something.
Read your Mars with your Venus: Venus shows what attracts you, Mars shows how you pursue it. Together they describe your style in love and desire.
The 12 Mars signs at a glance
| Mars in | How you act | Under stress |
|---|---|---|
| Aries | Fast, direct, competitive | Flares up, then moves on |
| Taurus | Slow, steady, unstoppable | Digs in and refuses to budge |
| Gemini | Quick, verbal, many projects | Argues and scatters |
| Cancer | Protective, indirect | Sulks or retreats |
| Leo | Bold, proud, wants to lead | Wounded pride, drama |
| Virgo | Precise, skilled, useful | Criticises and over-works |
| Libra | Diplomatic, fair-minded | Avoids conflict, then boils over |
| Scorpio | Intense, strategic, private | Goes cold, holds grudges |
| Sagittarius | Enthusiastic, big goals | Restless, blunt |
| Capricorn | Disciplined, long-term | Cold, controlled anger |
| Aquarius | Principled, independent | Detached, rebellious |
| Pisces | Intuitive, inspired | Avoids, drifts, gives in |
Mars is traditionally strongest in Aries and Scorpio (the signs it rules) and in Capricorn (its exaltation). It is considered weaker in Libra, Taurus and Cancer, where its drive comes out more gently or indirectly. A weak Mars is not a bad Mars; it just works differently.
Why some birthdays need a birth time
Mars usually spends about six to seven weeks in each sign, but it can stay up to seven months when it turns retrograde. If Mars changed sign on your birthday, the calculator says so and names both signs. Add your birth time to settle it.
Unlike the Moon, Mars rarely changes sign on any given day, so most people get a clear answer from the date alone.
Mars retrograde in your birth chart
About one in ten people is born with Mars retrograde. Astrologers read it as drive that turns inward first: you may think long before acting, revisit old goals and handle anger quietly. The calculator tells you if your Mars was retrograde.
It is not a flaw. Many people with retrograde Mars are patient, strategic and persistent once they commit.
How to use your Mars sign
- Plan work in the style your Mars likes: sprints for fire signs, steady routines for earth signs, variety for air signs, meaning for water signs.
- Notice your anger pattern from the table and catch it earlier.
- Compare your Mars with a partner's Venus to see how desire and attraction meet.
- Look up your Venus and Mercury too, or see all planets at once in the free birth chart.
Frequently asked questions
How do I find my Mars sign?
Enter your birth date in the calculator above. It computes where Mars was on that day and shows the sign and exact degree. Birth time is only needed if Mars changed sign on your birthday.
What does my Mars sign say about me?
Your Mars sign describes how you take action, what motivates you, how you deal with anger and conflict, and how you pursue what you desire.
Do I need my birth time for my Mars sign?
Usually not. Mars stays in a sign for weeks or months, so the date is almost always enough. The calculator warns you if Mars changed sign on your birthday.
What is the difference between Mars and Venus signs?
Venus describes what you find attractive and how you show affection. Mars describes how you go after what you want, including desire, drive and anger.
Is my Mars sign the same as my Sun sign?
Often not. Mars moves independently of the Sun, so your Mars can be in any of the 12 signs regardless of your Sun sign.
Is this Mars sign calculator accurate?
Yes. It uses astronomy-engine, the same kind of ephemeris used in astronomy software, and is accurate to well under one degree. Everything is calculated in your browser.