Free moon sign calculator
What's my moon sign?
Your sun sign is who you're becoming. Your moon sign is how you feel along the way — the inner weather you move through. Find it free, then meet the companion who reads all of you.
Free · your moon sign needs your birth date and (ideally) time · details stay on your device.
What your moon sign means
The Moon governs your inner life — your instincts, your moods, the way you self-soothe, and what makes you feel safe. Two people with the same sun sign can move through the world completely differently because their moons differ: one needs solitude to recover, another needs people. Knowing your moon sign is knowing your emotional native language.
From feeling to becoming
A moon sign explains how you feel — but feeling isn't the same as changing. Cosmuna reads your moon as part of your Blueprintand pairs it with your inner vibration — your patterns and the self-image you're shifting. Cosmo, your companion, helps you work with your emotional nature instead of against it, and take the next real step when the timing is right.
Frequently asked
What is a moon sign?
Your moon sign is the zodiac sign the Moon was in when you were born. Where your sun sign is your core identity, your moon sign is your emotional inner world — how you feel, comfort yourself, and react before you think.
How do I find my moon sign?
Enter your birth date, time, and place above. The Moon moves about half a degree an hour, so an accurate birth time matters most when you were born near the edge of a sign.
What if I don't know my birth time?
You'll still get a moon sign for most of the day's range — only births close to a sign change are uncertain without a time. You can add your time later for a precise result.
Is the moon sign calculator free?
Yes — free, no account needed to see your result. Creating an account lets Cosmo read your full Blueprint over time and help you act on it.