Vela

Mars sign calculator

What's your Mars sign?

Mars is how you assert yourself, chase what you want and meet resistance. Find your Mars sign free, computed from the real sky and read in an honest, psychology-informed voice: a lens for reflection, never a prediction.

Local clock time. The rising sign needs this.
Can’t find it?
New to this? Placidus is a good default; it’s what most modern charts use, so yours will match what you see elsewhere.
What is a house system, honestly?

Your chart divides the sky into twelve “houses”: areas of life like home, work, and relationships. Astrologers have never fully agreed on where to draw the twelve boundaries, so there are several systems. Your planets and signs are identical in all of them; the only thing that changes is which house a planet sits in.

Placidus is the modern standard (most apps and books use it). Whole Sign is the oldest system: each house is one entire sign, which many people find clearest to learn with. Equal draws twelve even 30° rooms from your Ascendant. None of them is “wrong”; try your chart in two and notice which reading gives you more to think about. The plain-language guide →

Still needed: your date of birth, a birth time (or tick “I don’t know”), your birth place and the 18+ confirmation.

Your reading opens with your Sun, Moon and Rising; Mars is in the placements table, with a link to read Mars in your sign.

What your Mars sign is

Your Mars sign is the zodiac sign Mars was moving through when you were born. Mars is the part of a chart that acts: how you pursue what you want, assert yourself, handle anger and conflict, and where your energy naturally points. Alongside your Venus sign, it is the pair astrologers read for how you love and how you pursue.

Vela does not tell you what your Mars “makes” you do. It names your way of acting and hands it back as a question, because the reflection is yours. That is the whole method: honest astrology as self-inquiry, not fortune-telling.

How to find your Mars sign

Enter your date of birth, time of birth and place of birth above. Date and place set the sky; Mars moves at a moderate pace, so a birth time sharpens the chart but your Mars sign is usually clear without one. If you do not know your time, tick “I don’t know my birth time” and cast a noon chart.

Once you have it, read the planets in the signs for what Mars in your sign means, and explore how it meets someone else’s chart with the compatibility calculator. Curious about the rest of your chart? Find your big three or cast your full birth chart.

Frequently asked

What is a Mars sign?

Your Mars sign is the zodiac sign Mars was in when you were born. Mars is your drive: how you go after what you want, assert yourself, handle conflict and anger, and where your raw energy naturally points. Where Venus is how you love, Mars is how you pursue; together they describe the engine of desire in a chart.

How do I find my Mars sign?

Enter your date, time and place of birth above. Vela computes where Mars sat in the sky at your birth and shows it with your other placements, read in an honest voice. Mars moves at a moderate pace, so a birth time is not essential for it; your date and place are usually enough to place your Mars sign.

What does my Mars sign say about me?

Mars describes how you take action and meet resistance: whether you move fast or bank your energy, how you argue, what you find worth fighting for, and how desire shows up. It is a lens on your drive, not a verdict on your temper. Vela names the pattern and hands it back as a question, so the reflection is yours.

Is the Mars sign calculator free?

Yes. Casting your chart and finding your Mars sign is free and needs no account. A Vela membership adds a personalised daily reading of the sky against your own chart, but your Mars sign costs nothing.