Free tool
Moon sign calculator
Your Moon sign shows your emotional nature: what you need to feel safe, how you react and what comforts you. Enter your birth details below to calculate it with astronomical precision, together with your Sun sign, rising sign and Life Path number.
Do I need my birth time?
The Moon changes sign about every two and a half days. If it did not change signs on your birthday, your date is enough. If it did, your birth time decides which sign is right — the calculator warns you when that can happen.
Moon sign vs Sun sign
Your Sun sign describes who you are becoming and how you shine; your Moon sign describes what you need inside. Many people relate more to their Moon sign in close relationships and at home.
Frequently asked questions
What does my Moon sign mean?
It describes your emotional needs and your instinctive reactions. After calculating it, read the page for your Moon sign — for example, Moon in Scorpio or Moon in Cancer — to go deeper.
How accurate is this Moon sign calculator?
Positions are calculated with an astronomical model checked against the Swiss Ephemeris, including historical time zones and daylight saving time. The main source of error is an incorrect birth time.
See your own birth chart
Your planets, houses and aspects are unique to the minute and place you were born. Calculate them for free below.
Your free birth chart reading
See your Sun, Moon, Rising sign and Life Path number in seconds. Free, no sign-up.
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