Is your partner your moon soulmate?
Enter two birth dates to see the moon phase each of you was born under and how your lunar rhythms fit together. Instant, private and free.
Your dates stay in your browser. Nothing is sent or stored.
How the moon soulmate test works
The moon moves through the same eight phases roughly every 29.5 days. The phase on the day you were born is your birth moon, and comparing two birth moons is a simple, playful way to think about how two people connect.
Enter two birth dates
Yours and your partner’s, crush’s or best friend’s. Names are optional and only appear in your result.
We find both birth moons
The calculator works out the moon phase and how much of the moon was lit on each date.
Read your moon match
See your harmony score, your pairing type and what each birth moon says about how you love.
The eight birth moons
Each phase has its own mood. Many people find that their birth moon describes how they start things, how they handle emotions and what they need in love.
New Moon
Beginnings, intentions and quiet intuition.
Waxing Crescent
Hope, motivation and first steps.
First Quarter
Action, decisions and courage.
Waxing Gibbous
Refining, patience and devotion.
Full Moon
Emotion, expression and connection.
Waning Gibbous
Gratitude, sharing and teaching.
Last Quarter
Release, change and honesty.
Waning Crescent
Rest, healing and reflection.
The four types of moon match
Your result places you in one of four pairings, based on how far apart your birth moons sit in the lunar cycle.
| Pairing | When it happens | What it often feels like |
|---|---|---|
| 🪞 Mirror Moons | Same or almost the same phase | Deep understanding, shared rhythm, similar needs |
| ☯️ Opposite Moons | Phases on opposite sides of the cycle | Strong attraction, balance, complementary strengths |
| 🌗 Neighbouring Moons | Phases close together | Easy, comfortable, one partner gently leads |
| ⚡ Crossing Moons | Phases a quarter cycle apart | Dynamic, challenging, lots of growth |
More free moon tools
Everything runs instantly in your browser.
Moon Phase Today
Tonight’s phase, how much of the moon is lit and the dates of the next full and new moon.
Birthday Moon Phase
See the moon on the day you were born, what it says about you and how many full moons you have seen.
Moon Calendar
Plan dates, rituals or a wedding with a month-by-month calendar of every moon phase.
Latest from the blog
Guides on moon phases, love and self-reflection.
- Does the Full Moon Affect Sleep and Mood? What Research Says
- Moon Phase vs Moon Sign: What Is the Difference?
- Choosing a Wedding Date by the Moon Phase
- Supermoon, Blue Moon and Blood Moon Explained
- Full Moon Names by Month: Wolf Moon to Cold Moon
- How to Track the Lunar Cycle: A Beginner Habit That Sticks
Frequently asked questions
Quick answers about the moon soulmate test.
What is a moon soulmate?
It is a playful idea from lunar astrology: two people whose birth moon phases match, mirror or balance each other are said to share an emotional rhythm. It is a fun lens for talking about your relationship, not a rule.
Do I need my birth time?
No. The moon phase changes slowly, so the date is enough for this test. If you were born on a day when the phase changed, your result could sit on the border between two phases.
Is the moon phase the same as my moon sign?
No. Your moon phase is the shape of the moon (how much was lit). Your moon sign is the zodiac sign the moon was passing through, which needs your exact birth time and place to calculate.
Is the result scientific?
No. The moon phase itself is real astronomy, but the meanings attached to it come from astrology and folklore. Please use your result for fun and reflection, not for big life decisions.
Do you store our names or dates?
No. The calculator runs entirely in your browser. Nothing you type is sent to our server.
What if we got a low score?
Every pairing has strengths. Crossing Moons, for example, often describes couples who grow the most together. Communication, respect and shared values matter far more than any moon.
Curious about someone else?
Try the test with a friend, a sibling or a crush. It only takes a few seconds.
Try another matchMy Moon Soulmate is an entertainment and self-reflection website. Moon phases are calculated from the average lunar cycle and may differ by a few hours from official astronomical data. Astrological interpretations are not scientifically proven and are not relationship, medical or financial advice.