Zodiac Compatibility Calculator & Synastry Analysis
Decode the cosmic chemistry between any two signs. Are you soulmates, karmic teachers, or a chaotic disaster?
Or explore all 144 zodiac matches below
Powered by Synastry geometry. We analyze Aspects, Elements, and Modalities to give you a rating rooted in astrological math, not just vibes.
Quick Compatibility Cheat Sheet
Understanding elemental compatibility is the foundation of synastry. Signs of the same element share core values, while complementary elements create balance.
Fire
Passionate, dynamic, and temperamental. Fire signs bring energy and inspiration to relationships.
Earth
Grounded, practical, and sensual. Earth signs provide stability and lasting foundations.
Air
Intellectual, social, and objective. Air signs thrive on mental connections and idea sharing.
Water
Intuitive, emotional, and profound. Water signs seek deep emotional bonds and soul-level intimacy.
Pro tip: Same-element pairs (Fire+Fire) are passionate but volatile. Complementary pairs (Fire+Air, Earth+Water) create lasting balance.
Explore Zodiac Matches by Sign
Click any sign to explore all 11 of its compatibility profiles. Each page contains detailed synastry analysis and relationship insights.
Fire Signs
Earth Signs
Air Signs
Water Signs
Why Sun Sign Compatibility Is Not Enough
The "Big 3" in Relationships
Your Sun is your Ego. Your Moon is your Heart. Your Rising is your Vibe. True compatibility happens when these layers interlock.
Venus & Mars: The Lovers
Venus rules romance (flowers, dates). Mars rules desire (bedroom chemistry). You can have compatible Suns but clashing Mars signs, leading to a "friend zone" dynamic.
Stop guessing. Get the full Synastry report.
Our App calculates the geometric angles between your Venus and their Mars. Download Sonder to see your true score.
Discover Your Full Cosmic Identity
Your Sun Sign is just the tip of the iceberg. Find your Moon and Rising signs instantly with our free app.
Frequently Asked Questions about Synastry
While every chart is unique, elemental trines (e.g., Leo & Aries, both Fire signs) and sextiles (e.g., Taurus & Cancer) often create the easiest flow. However, the "best" match depends on your full birth chart, not just Sun signs.