Chinese Zodiac Compatibility
Every birth year belongs to one of twelve animals — and the tradition has a lot to say about which animals click and which clash. Enter two birth dates to find both animals and how well the pair matches, free.
How Chinese zodiac compatibility works
The Chinese zodiac runs on a repeating twelve-year cycle, and your birth year decides which animal you are — Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, or Pig. Compatibility isn’t about personality quizzes; it’s geometry. The twelve animals sit evenly around a wheel, and how two animals get along comes down to the angle between their positions on it.
Three patterns matter most. Animals four years apart fall into the same trine and harmonise naturally. Certain pairs are bound as secret friends, a quieter but very lucky bond. And animals sitting directly opposite each other — six years apart — clash. Everyone else lands somewhere in between: no built-in spark, but no built-in friction either.
The four trines — three harmonies
The strongest matches come from the four trines (三合, “three harmonies”). Each trine groups three animals spaced evenly around the wheel, four years apart, who share a similar pace, outlook, and set of values. Pair two animals from the same trine and the relationship tends to feel easy from the start — shared ambition, quick trust, and very little to fight about.
The first trine — Rat, Dragon, and Monkey — is the zodiac’s ambitious, quick-witted crowd. The second — Ox, Snake, and Rooster — is its thoughtful, methodical strategists. The third — Tiger, Horse, and Dog — runs on freedom, loyalty, and heart. And the fourth — Rabbit, Goat, and Pig — is the gentle, artistic, peace-keeping group. Inside each, the chemistry is built in.
The six clashes — opposite animals
The trickiest pairings are the six clashes (六冲). Each animal has exactly one opposite, sitting directly across the wheel, and the two tend to want opposite things. These pairings can read as intense and passionate or as a constant tug-of-war — often both. They’re not doomed, but they ask for the most compromise and the clearest communication of any match in the system.
- Rat & Horse
- Ox & Goat
- Tiger & Monkey
- Rabbit & Rooster
- Dragon & Dog
- Snake & Pig
Beyond the head-on clashes, a softer set of harm pairings (六害) creates minor, recurring friction rather than open opposition. And every pairing that isn’t a trine, a secret friend, a harm, or a clash is simply neutral — no shortcut, but a clean slate to build on.
Questions about Chinese zodiac compatibility
How is Chinese zodiac compatibility calculated?
Each person's birth year maps to one of twelve animals on a repeating 12-year cycle. Compatibility comes from where those two animals sit on the wheel: animals in the same trine (three harmonies) or paired as secret friends (six unions) get along naturally, while animals sitting directly opposite each other clash. Enter two birth dates and the tool works out both animals and the bond between them.
What are the four compatibility trines?
The twelve animals split into four trines of three: Rat–Dragon–Monkey, Ox–Snake–Rooster, Tiger–Horse–Dog, and Rabbit–Goat–Pig. Animals in the same trine are spaced four years apart, share a similar temperament and outlook, and form the strongest natural matches in the Chinese zodiac.
Which Chinese zodiac signs clash?
There are six clash pairs, each sitting directly opposite on the wheel: Rat–Horse, Ox–Goat, Tiger–Monkey, Rabbit–Rooster, Dragon–Dog, and Snake–Pig. Clashing animals have opposing instincts, so these pairings tend to run hot — passionate but high-friction — and reward real compromise.
Does my exact birthday change my animal?
It can. The Chinese New Year falls in late January or early February and shifts each year, so the animal year doesn't line up with January 1. If you were born in January or early February, check the exact Chinese New Year date for your birth year — you may actually belong to the previous animal.
Can two clashing animals still make it work?
Yes. The trines and clashes describe natural ease, not destiny. A clash pairing simply asks for more conscious effort — clearer communication and more compromise — while a trine pairing coasts more easily. Plenty of strong relationships pair animals that the tradition calls a clash.
