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Moon sign calculator

Enter your birth date and place to find the sign the Moon was in when you were born. Add your birth time to get your full big three: Sun, Moon and rising.

City not listed? Enter coordinates

North and east are positive, south and west negative.

What is a Moon sign?

Your Moon sign is the zodiac sign the Moon was in at the moment you were born. In astrology the Sun describes who you are becoming and the Moon describes how you feel: what comforts you, what you need when you are upset, and how you care for other people.

The Moon moves through a sign in about two and a half days, so people born a few days apart can share a Sun sign but have very different Moons.

Do I need my birth time?

Usually not. On most days the Moon stays in one sign from midnight to midnight, and the calculator will just give you the answer. If the Moon changed sign on your birthday, we tell you both signs, and your birth time decides between them. Your rising sign always needs a time.

The twelve Moon signs

A short read on each. Your Moon’s house and the aspects it makes in your full chart add the detail.

  • Aries Moon: quick feelings, quick recovery; needs action.
  • Taurus Moon: needs comfort, calm and routine.
  • Gemini Moon: talks feelings through; needs variety.
  • Cancer Moon: deeply caring; needs a safe home base.
  • Leo Moon: needs warmth and appreciation.
  • Virgo Moon: calms down by sorting and helping.
  • Libra Moon: needs harmony and company.
  • Scorpio Moon: intense, private, deeply loyal.
  • Sagittarius Moon: needs freedom and something to look forward to.
  • Capricorn Moon: steady, self-controlled, security through achievement.
  • Aquarius Moon: needs space; cares in practical ways.
  • Pisces Moon: intuitive and soft; absorbs the room.

Your big three

Astrologers often start a reading with three placements: your Sun sign (core self), Moon sign (emotional self) and rising sign (how you come across). This calculator shows all three when you add a birth time and place.

FAQ

Questions people ask

How do I calculate my Moon sign?
Enter your birth date and birthplace above. The calculator finds where the Moon was on that day using an astronomical ephemeris and tells you its sign and degree.
What if the Moon changed signs on my birthday?
We check the Moon at the start and end of your birth date in your birthplace’s time zone. If it changed, we show both signs; your birth time picks the right one.
What is the difference between my Sun sign and Moon sign?
Your Sun sign is set by your birthday and describes your core identity. Your Moon sign changes every couple of days and describes your emotional needs and instincts.
Which zodiac does this use?
The tropical zodiac used in Western astrology. Vedic (sidereal) astrology places signs about 24° earlier, so a Vedic Moon sign is often one sign back.
Is my birth data stored?
No. Everything is calculated in your browser.

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Note. Astrology is a reflective tradition, not a science. Positions are calculated with the open-source astronomy-engine library (tropical zodiac, whole-sign houses); your birth data stays in your browser.