Moon Sign Calculator

Estimate your astrology moon sign using your birth date, birth time, and time zone. Your moon sign is often connected with emotions, instincts, habits, comfort, reactions, and your inner world.

Calculate Moon Sign

Moon Sign = approximate moon longitude ÷ 30° zodiac sections
Your result will appear here.

How the moon sign calculator works

Birth date and time:
The calculator uses your birth date, birth time, and time zone offset to estimate the moon’s zodiac position.

Moon longitude:
A simplified lunar position formula estimates the moon’s ecliptic longitude.

Moon sign:
The moon longitude is divided into 12 zodiac sections of 30 degrees each to estimate your moon sign.

Why use a moon sign calculator?

A moon sign calculator is useful for finding the astrology sign connected with your emotional style, instincts, private reactions, comfort needs, memories, and inner life.

Since the moon moves quickly, this estimate may be less accurate for birthdays near a moon sign change. Exact astrology software uses detailed ephemeris data and birth location.

What your moon sign means

Your moon sign is commonly used in astrology to describe emotional needs, habits, instincts, moods, family patterns, private reactions, and what helps you feel comfortable or secure.

Moon sign tips

Frequently asked questions

What is a moon sign?

Your moon sign is the zodiac sign the moon was in when you were born. It is often connected with emotions, instincts, comfort, memory, and private reactions.

Do I need my birth time for moon sign?

Yes, birth time helps a lot. The moon moves quickly and can change signs within a couple of days, so time can affect the result.

Is this moon sign calculator exact?

This calculator is an estimate. Exact moon sign calculations should use precise birth time, birth location, time zone rules, and detailed ephemeris data.

Is moon sign the same as sun sign?

No. Your sun sign is tied to core identity and birthday date range. Your moon sign is tied to the moon’s position and is more connected with emotional patterns.