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Moon Sign Calculator

Your moon sign rules your inner emotional world — how you feel and what makes you feel safe. Find yours instantly below, computed from a real astronomy engine. Free, no sign-up.

Your birth details

⭐ Add your birth time for the most accurate result.

What is a moon sign?

Your moon sign is the zodiac sign the Moon occupied at the moment you were born. Where your sun sign is your conscious identity, your moon sign is your emotional, instinctive self — the private you. Because the Moon moves fast, changing sign every ~2.5 days, two people born days apart can have very different moon signs.

Your Big Three

Your moon sign is one third of your Big Three — Sun, Moon and Rising. The Sun is who you are, the Moon is how you feel, the Rising is how you come across. Want the whole picture? Get your full birth chart with every planet, house and aspect.

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Moon Sign FAQ

What is a moon sign? ＋

Your moon sign is the zodiac sign the Moon was in when you were born. While your sun sign is your core identity, your moon sign rules your inner emotional world — how you feel, what makes you feel safe, and your instinctive reactions. Many people find it describes them even better than their sun sign.

How do I find my moon sign? ＋

You need your birth date, and ideally your birth time and place, because the Moon changes sign roughly every 2.5 days. Enter them in the calculator above and it computes your moon sign instantly using a real astronomy engine.

Can I find my moon sign without my birth time? ＋

Usually yes. The calculator estimates from your birth date, which is accurate unless you were born on a day the Moon changed signs. Adding your birth time removes any doubt.

What’s the difference between sun sign and moon sign? ＋

Your sun sign (your “star sign”) is your core identity and ego. Your moon sign is your emotional, private self — how you process feelings and what you need to feel secure. Together with your rising sign, they form your “Big Three.”

For self-understanding and entertainment.