Mars sign calculator

Your Mars sign describes how you go after what you want: your drive, your temper and your desire. Find it with its house, its dates and your next Mars return.

Enter your birth details to find your Mars sign, its house and your next Mars return.

How to find your Mars sign

  1. Enter your birth date, and your birth time if you know it (the time adds the house).

  2. Choose your birth place from the list so your local time converts correctly.

  3. Press Find my Mars sign to see the sign, its reading, the dates Mars spent there and your next Mars return.

  4. Open your Mars lines on the map to see where on Earth its energy is read as strongest.

What your Mars sign says

Mars is the planet astrologers associate with action. It describes how you start things, how you compete, what makes you angry and how you pursue what, and whom, you want. In relationship astrology it is read alongside Venus: Venus describes what attracts you, Mars how you go after it. Your Mars sign is often a different sign from your Sun, which is one reason people with the same Sun sign handle conflict so differently.

Mars sign How astrologers describe the drive
Aries Fast, brave, competitive; quick to flare and quick to cool
Taurus Steady, patient, strong; hard to push
Gemini Mental energy, debate, many projects at once
Cancer Protective, indirect, driven by feelings
Leo Confident, creative, a natural lead
Virgo Precise, skilled, hard-working
Libra Strategic, diplomatic, fights for fairness
Scorpio Focused, determined, deep and quiet anger
Sagittarius Enthusiastic, adventurous, fights for causes
Capricorn Disciplined, ambitious, the long climb
Aquarius Independent, inventive, rebels against orders
Pisces Intuitive, compassionate, avoids direct conflict

With a birth time the calculator adds the house. Mars in the 10th house puts that drive into career and reputation; in the 4th, into home and family; in the 7th, into partnerships, where astrologers say it can bring both passion and friction.

Why Mars sometimes stays for months

From Earth, Mars usually spends six or seven weeks in each sign. Roughly every 26 months, as Earth overtakes it, Mars appears to stop and move backward for about ten weeks. Around those retrogrades it can linger in one sign for up to about eight months, and it can slip back into the previous sign before moving on. In 1990, for example, Mars reached Gemini at the end of August, turned back into Taurus in December and only returned to Gemini in January 1991.

The calculator shows the exact dates Mars entered and left your sign in your birth time zone, plus a table of every Mars sign in your birth year with any retrograde re-entries marked.

Your Mars return

Mars comes back to the degree it held at your birth about every two years, although the gap stretches when a retrograde falls near that degree. The calculator searches the next three years and gives the date of each return, with every pass when a retrograde loop makes Mars cross the degree three times. Astrologers read a Mars return as the start of a new two-year cycle of effort, a natural time to begin projects and set goals.

Mars on the map

Mars has four astrocartography lines: where it was rising, setting, overhead and underfoot when you were born. They are read as places of energy, courage and competition, and sometimes conflict. The Mars MC line is associated with drive in your career, the Mars ASC line with physical energy and boldness. Read each one in the Mars lines guide, compare them with the other lines for career, or open them on your astrocartography chart.

Beyond Mars

Mars is one piece of the chart. Your Venus sign completes the classic pair of desire and attraction, your birth chart shows how Mars aspects the other planets, and the transit chart shows when the slow planets touch your natal Mars in the year ahead.

Questions

What does my Mars sign mean?

Astrologers read Mars as your drive: how you act, compete, stand up for yourself, get angry and pursue desire. The sign describes the style of that energy and the house shows where you spend it.

How long does Mars stay in one sign?

Usually about six or seven weeks. Every two years or so Mars turns retrograde for a couple of months, and around those loops it can stay in one sign for up to about eight months.

Do I need my birth time?

Not for the sign in almost every case: Mars changes sign on only about one day in fifty, and when it does the calculator shows the local time of the change. The house needs a birth time.

What does a retrograde Mars mean?

About one person in eleven is born while Mars appears to move backward. Astrologers read it as drive turned inward: strategic, reflective and slower to show anger.

What is a Mars return?

It is when Mars comes back to its exact birth degree, about every two years. Astrologers read each one as the start of a new cycle of effort and ambition.