Chinese Zodiac & Star Sign Compatibility Calculator
Your Chinese zodiac animal and Western star sign come from different systems — but together with your birth-year Five Element energy, they form a three-layer compatibility picture no single system can offer. This free calculator scores all three layers and explains what they mean.
How the Three Systems Work Together
Western Sun Signs
Your sun sign (Aries, Taurus… Pisces) is determined by your birth month and date. Each sign belongs to one of four elements — Fire, Earth, Air, or Water — that shape your fundamental temperament.
Chinese Zodiac Animal
Your Chinese zodiac animal is determined by your birth year, cycling through Rat, Ox, Tiger… Pig in 12-year repeating groups. Classical relationships (San He trine, Liu He secret-friend, Liu Chong clash) define how animals interact.
Five Elements (WuXing)
Each birth year carries one of the Five Elements — Wood, Fire, Earth, Metal, or Water — through the Heavenly Stem cycle. These elements interact via generating (支持) and controlling (克制) cycles, adding a third layer to compatibility.
Compatibility Calculator
Enter two birth dates. All calculations happen in your browser — no data is stored or sent anywhere.
Understanding Your Score
| Rating | Score range | What it means |
|---|---|---|
| Excellent | 80–100 | Multiple layers align — natural ease and mutual support across systems. |
| Strong | 60–79 | Clear compatibility with some constructive friction — real depth potential. |
| Balanced | 40–59 | A genuine mix of support and tension — where most connections live. |
| Challenging | 0–39 | Opposing energies — friction that asks for patience, awareness, and communication. |
Note: This calculator is designed for entertainment and self-reflection. It is not a substitute for a professional astrology consultation or relationship advice. All relationships are shaped far more by choices, communication, and care than by birth charts.
Frequently Asked Questions
Your Chinese zodiac animal and Western star sign come from different systems, so they don't directly "match" — but they can complement or tension each other in meaningful ways. The Chinese zodiac is determined by your birth year; your sun sign is determined by your birth month and date. Comparing the two reveals how Eastern timing cycles and Western planetary energy interact in your profile.
This calculator scores compatibility across three layers: your Western sun signs (and their Fire/Earth/Air/Water elements), your Chinese zodiac animals (using classical San He trine, Liu He secret-friend, and Liu Chong clash relationships), and your birth-year Five Elements (Wood, Fire, Earth, Metal, Water and their generating and controlling cycles). Each layer is weighted and combined into an overall reading.
San He (三合, "triple harmony") is one of the strongest positive combinations in Chinese astrology. The four trine groups are Rat-Dragon-Monkey, Ox-Snake-Rooster, Tiger-Horse-Dog, and Rabbit-Goat-Pig. Animals within the same group share a deep elemental resonance and tend to bring out the best in each other.
Liu Chong (六冲, "six clashes") pairs are six apart in the zodiac cycle: Rat-Horse, Ox-Goat, Tiger-Monkey, Rabbit-Rooster, Dragon-Dog, Snake-Pig. A clash doesn't mean incompatibility — many lasting partnerships involve clash animals — but it does suggest a dynamic, friction-prone energy that requires mutual respect and communication to channel productively.
No — this tool offers an accessible, entertaining introduction using three key indicators. A full BaZi compatibility analysis considers all eight characters of both charts, the interaction of all stems and branches, luck pillar timing, and much more. For a deeper reading, use Silk & Spark's Fusion Reading or book a session with one of our expert astrologers.