Cosmir
Moon · Emotional Chart

Moon sign calculator

Your moon sign is the map of your inner world and emotional needs. Enter your date, time, and place; let’s compute the Moon’s real position at the moment you were born.

  • Real ephemeris
  • Emotional inner world
  • Free & no sign-up
Calculate your moon signMoon
Date of birth
Time of birth
If you’re not sure of the exact time, enter an approximate one; we’ll refine it together with your life events in the app.
Place of birth

Your details are never used for anything but generating your reading.

What is the moon sign?

Your moon sign is the sign the Moon occupied at the moment you came into the world. In astrology the Moon represents your emotions, instincts, sense of safety, and the quiet language of your heart. If your sun sign is the face everyone sees, your moon sign is what happens behind the curtain — the part that surfaces when you’re alone, tired, or hurt.

That’s why getting to know your moon sign is one of the ways to understand yourself with more compassion. What you need, how you find comfort, and in which situations you withdraw into your shell — the Moon usually tells all of that.

Moon sign vs. sun sign

It’s easy to confuse the two, but their roles are very different:

  • Your sun sign — your conscious identity, life direction, the essence you call “this is me.”
  • Your moon sign — your emotional need, instinctive reactions, and how you feel safe.
  • Your rising sign — your outward manner and first impression. Calculate your rising too.

Read together, the three complete the portrait. Looking only at the sun sign is like knowing a book by its cover alone.

Is a birth time required for the moon sign?

The Moon is the fastest-moving light in the sky; it changes sign about every 2.5 days. On most days it stays in the same sign all day, so even without knowing your time the date is usually enough to determine the moon sign. But on the transition days when the Moon changes sign, the time matters — for a definite result it’s healthiest to enter your time.

Read your moon sign in your full chart

Your moon sign alone is a strong start, but which house the Moon is in and the aspects it makes to other planets describe your emotional world far more finely. To see all of these layers, calculate your birth chart; if you like, the AI astrologer in the app turns these connections into a conversation for you.

Find your moon sign now — enter your birth details in the form above. Let’s lay the first stone of your emotional chart together.

FAQ

Common questions

How is the moon sign calculated?+
Your moon sign is the sign the Moon was in at the moment you were born. To calculate it you need your birth date, time, and the city where you were born. The Moon moves quickly across the sky (it changes sign about every 2.5 days), so an accurate date and time sharpen the result.
What’s the difference between the moon sign and the sun sign?+
Your sun sign describes your conscious essence, life direction, and identity. Your moon sign shows your emotional inner world, how you feel safe, and your instinctive reactions. Most people’s Sun and Moon signs differ; together they paint a far more complete portrait.
Is a birth time required for the moon sign?+
On most days the Moon stays in the same sign throughout, but on days when the Moon changes sign the time becomes critical. To guarantee the right result it’s best to enter your time; even without it, the date is usually enough to determine the moon sign.
What does the moon sign affect?+
Your moon sign colors your emotional needs, how you want to be nourished and feel safe, your habits, and your inner reactions. If you want to understand the “language of your heart” in relationships, looking at the moon sign is a good start.
Is calculating my moon sign free?+
Yes, completely free and no sign-up. Fill in the form above; on your result page you’ll see your moon sign, the planetary positions, and the core interpretation.