What is a Moon sign?
Your Moon sign is the zodiac sign the Moon occupied at the moment you were born. Where the Sun sign reflects your core identity, the Moon sign reflects your emotional instincts, what makes you feel safe, and how you process feelings. In modern psychological astrology it is one of the most personal points in your chart.
How to find your Moon sign
Enter your birth date in the calculator above. The Moon moves quickly — it changes sign roughly every two and a half days — so a birth time helps when the Moon changed signs on your birthday, but a date alone is enough for most people. No account is required.
What your Moon sign means
Your Moon sign describes your inner emotional landscape and how you instinctively seek comfort. It points to tendencies and needs, not fixed outcomes — treat it as a mirror for self-reflection rather than a prediction. Pair it with your Sun and rising for a fuller picture.
Using the Moon sign calculator
This free tool uses Swiss Ephemeris astronomy for accurate placements. For a deeper reading, explore your full birth chart and the psychological astrology articles in the AstrologyWiki wiki.