Free Moon Sign Calculator
Find your moon sign and what it says about your inner world.
The Moon changes sign every couple of days. A time sharpens the result near a boundary.
Calculated in your browser. Your birth details are never stored.
What is a moon sign?
Your moon sign is the zodiac sign the Moon was travelling through at the exact moment you were born. It is one of the three most important points in your chart, alongside your sun and rising. Where your sun sign is your core self and your rising sign is how you appear, your moon sign is how you feel: your emotional needs, your instincts, the way you nurture yourself and others, and the private inner world you return to when no one is watching.
How your moon sign is calculated
The Moon is the fastest moving body in astrology, travelling about thirteen degrees a day and changing sign roughly every two and a half days. To find which sign it was in for you, the calculator above uses your date of birth and, for accuracy near a sign change, your time and place. Most of the time your date is enough, but if you were born on a day the Moon shifted signs, your birth time decides which one you landed in.
Does your moon sign need your birth time?
Often your date alone is enough, because the Moon stays in one sign for a couple of days. The exception is if you were born close to the moment the Moon changed sign, when even a few hours can tip you from one to the next. Adding your time and place removes any doubt.
What your moon sign reveals
Your moon sign describes your emotional life: what soothes you, what unsettles you, what you need to feel safe, and how you give and receive care. It is the part of you that comes out in private, with the people closest to you, rather than the face you show the world. Two people with the same sun sign can have very different moon signs, which is part of why they feel so different to be close to. These are traditional associations, offered as a mirror for reflection rather than fixed fact.
The twelve moon signs at a glance
Every moon sign feels and nurtures a little differently:
- Aries moon: quick, fiery feelings and a need for independence.
- Taurus moon: steady, sensual feelings and a need for security.
- Gemini moon: changeable feelings, processed through words.
- Cancer moon: deep, tidal feelings and a need for home.
- Leo moon: warm, expressive feelings and a need to be appreciated.
- Virgo moon: feelings processed through usefulness and order.
- Libra moon: feelings soothed by harmony and partnership.
- Scorpio moon: intense, private feelings and a need for depth.
- Sagittarius moon: feelings that need freedom and meaning.
- Capricorn moon: contained feelings and a need for competence.
- Aquarius moon: feelings held at a thoughtful distance.
- Pisces moon: deep, absorbent feelings and a need for solitude.
Moon sign, sun sign and rising sign: your big three
Your sun, moon and rising are often called your big three. Your sun is who you are, your moon is how you feel, and your rising is how you appear. Reading all three together gives a far fuller picture than your sun sign alone. To see every placement at once, use the free birth chart calculator. You can also find just your rising sign or sun sign, or browse the twelve signs.
Can your moon sign change?
No. Your natal moon sign, the one in your birth chart, is fixed at the moment you were born and never changes. What does change is the sign the Moon is passing through in the sky right now, which moves every couple of days. So if you are asking what sign the Moon is in today, that is the current, or transiting, Moon, not your personal moon sign.
Is astrology real?
It is worth being honest. There is no scientific evidence that the positions of the planets shape emotion or personality, and astrology is best understood as a symbolic language and a tool for self reflection rather than a predictive science. Read your moon sign as a mirror and a prompt: take what resonates and leave the rest. The astronomical calculations behind modern charts, including the Swiss Ephemeris used by most calculators, are maintained by Astrodienst (astro.com).