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Free Moon Sign Calculator
Your Moon sign describes your emotional nature — what you need to feel safe, how you recharge, how you react under pressure. Enter your birth details and we calculate it from the real Moon position, not a date lookup table. Free, no sign-up.
Your birth details
Frequently asked
Questions, answered honestly
What is a Moon sign?
The zodiac sign the Moon was in when you were born. It describes emotional needs, instincts and what makes you feel safe — the private side of the chart, as opposed to the Sun sign's public identity.
Do I need my birth time to find my Moon sign?
Usually just the date is enough — the Moon changes sign roughly every 2.5 days. But if you were born near a sign change, the exact time matters. This calculator checks your whole birth day and tells you honestly if the Moon could be in either sign.
Moon sign vs Sun sign — what's the difference?
Sun is core identity and direction; Moon is emotional nature and comfort. Together with the rising sign they form the 'Big Three' of a chart — the quickest honest sketch of who you are.
Is my Moon sign really calculated?
Yes — from your birth date, time and place with a JPL DE421 ephemeris, not from a lookup table of dates. Your Moon's exact degree is shown, so you can verify it against any chart software.
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Computed with our own engine on NASA JPL DE421 ephemeris data. Results are for reflection and entertainment — they describe tendencies in a chart, never medical, financial or life decisions.