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.
Where is your Moon? Your date, time and place are all it takes.
Your birth data
When were you born?
The date sets the Sun, Moon and every planet.
Only your birth date is needed — no time required.
Three steps to your Moon
Enter your birth data
Your birth date is enough. You only need a time for the house.
Calculate the position
We use the Swiss Ephemeris engine — the same calculation base professional astrology software runs on. Arc-second accuracy, free.
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 — 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
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Aspects
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Planets & points
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Birth chart
Your whole chart with every point at once.
Learn astrology
Read your chart yourself in 30 days.
Reviewed by Katie Robinson · Astrologer & Tarot ReaderSee your whole chart
Moon is just one point. Build your full birth chart with every planet, point, house and aspect — free.
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