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TheresaThe Astro AcademyBy Theresa
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Astrology · Moon sign

Moon sign
calculator

The Moon is your inner life — feelings, habits, home. It shows what nourishes you, what sets you off, and how you bring yourself to safety when the world gets too loud. Where the Sun describes who you want to be, the Moon tells what you are when nobody is watching: your reflexes, your longings, the fabric your dreams are made of.

Your birth details

Enter your date, time and birthplace — we’ll calculate your personal result, free and in under a minute.

From your birth date, time and city we calculate your personal chart — each detail unlocks more of it.

Sets your Sun, Moon and every planet.

Swiss-Ephemeris accurateNo sign-up neededResult in seconds

Only your birth date is needed — no time required.

How it works

Three steps to your Moon

  1. Enter your birth data

    Your birth date is enough. You only need a time for the house.

  2. Calculate the position

    We use the Swiss Ephemeris engine — the same calculation base professional astrology software runs on. Arc-second accuracy, free.

  3. Read the interpretation

    You instantly see your sign — plus a clear explanation of what it says about you, and a link to the matching interpretation.

The basics

What the Moon means

Your inner emotional world

The Moon is one of the two "lights" of your chart — the counterpart to the Sun. Where the Sun shows who you are, the Moon shows how you feel: your instincts, your moods, your habits, and what you need to feel safe. It also stands for nurture, childhood and home in the widest sense.

Reading your Moon sign

Your Moon sign describes your emotional style and needs. A fire Moon needs excitement and freedom, an earth Moon stability and reliability, an air Moon space and exchange, a water Moon deep emotional closeness. The Moon sign is often more private than the sun sign — but it explains your first, instinctive reactions better than anything else.

Moon in every sign

AriesTaurusGeminiCancerLeoVirgoLibraScorpioSagittariusCapricornAquariusPisces
The planets
What every planet means

From the Sun to Pluto — what each planet governs in your chart, in plain language.

Book + app

Your astrology diary & app, written just for you.

  • Your personal astrology diary: It tells you, from your birth chart, how you love, where your strengths lie and what drives you – with the current planetary movements, moon phases and the best days for you and the people closest to you.
  • App: learn astrology & tarot on your own chart and your family & friends’.
  • In 30 days: You read birth charts & tarot cards for yourself and the people you love.
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Moon — frequently asked questions

Do I need my birth time for the Moon?
Usually not. The Moon changes sign roughly every 2.5 days — your birth date is almost always enough. Only if you were born on the exact day the Moon changed sign does the time help pin it precisely.
What does my Moon sign say about me?
Your Moon sign shows how Moon expresses itself in your chart. Enter your birth date, find your sign, and read the full interpretation below.
Is the Moon calculator free?
Yes. The calculator is completely free and needs no sign-up. We only ask for your email when you want to connect the result to your full birth chart.

More astrology tools

Katie RobinsonReviewed by Katie Robinson · Astrologer & Tarot Reader

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