Chinese Zodiac Compatibility: How the 12 Signs Match

Which animal signs get along, which clash, and why? The traditional rules in one clear guide.

Updated October 13, 2026

Presented as cultural tradition, for reflection and fun.

How compatibility works in Chinese astrology

In Chinese astrology each year belongs to one of 12 animals, and each animal is attached to an earthly branch (地支): Rat 子, Ox 丑, Tiger 寅, Rabbit 卯, Dragon 辰, Snake 巳, Horse 午, Goat 未, Monkey 申, Rooster 酉, Dog 戌, Pig 亥. Compatibility is mostly about how those branches relate to each other. The traditional rules are simple enough to learn in a few minutes.

Two housekeeping notes. First, your sign follows the Chinese New Year, not January 1. If you were born in January or early February, check that year's Lunar New Year date; you may belong to the previous animal. Second, this is cultural tradition. It is a lovely conversation starter and a prompt for reflection, not a verdict on a relationship.

1. The four trines (三合, "three harmonies")

The 12 signs sit around a circle, and every fourth sign shares a temperament. These groups of three are the classic "best match" circles.

Each trine is also tied to an element in the combined tradition (the Rat-Dragon-Monkey trine to Water, Ox-Snake-Rooster to Metal, Tiger-Horse-Dog to Fire and Rabbit-Goat-Pig to Wood).

2. The six secret friends (六合, "six combinations")

These are pairs that sit side by side on a mirrored layout. Traditionally they describe a quiet, complementary bond, where each sign fills in what the other lacks.

• Rat and Ox: ambition meets persistence.
• Tiger and Pig: bravery meets generosity.
• Rabbit and Dog: gentleness meets loyalty.
• Dragon and Rooster: charisma meets polish.
• Snake and Monkey: strategy meets ingenuity.
• Horse and Goat: freedom meets tenderness.

3. The six clashes (六冲)

Signs directly opposite each other on the circle are said to clash. A clash does not mean doom. It describes friction: pairs who push each other's buttons, and who often learn the most from each other if there is goodwill.

• Rat and Horse: security versus freedom.
• Ox and Goat: discipline versus sensitivity.
• Tiger and Monkey: boldness versus cleverness.
• Rabbit and Rooster: softness versus bluntness.
• Dragon and Dog: idealism versus skepticism.
• Snake and Pig: intensity versus ease.

4. Harms and penalties (the subtle tensions)

More advanced readings add two milder strains. Harms (害) are six pairs that quietly undermine each other: Rat-Goat, Ox-Horse, Tiger-Snake, Rabbit-Dragon, Monkey-Pig and Rooster-Dog. Penalties (刑) are small groupings that rub awkwardly, such as Tiger-Snake-Monkey and Ox-Goat-Dog. Different schools weigh these differently, so many casual guides skip them. Think of them as seasoning, not the main dish.

Quick reference: all 12 signs

What about the same sign?

Two people of the same sign tend to understand each other instantly and also magnify each other's flaws. Traditionally, same-sign pairs are neither lucky nor unlucky. The tradition calls them "self-penalty" for a few signs (Dragon, Horse, Rooster, Pig), which is just a gentle reminder that two of the same temperament need to take turns.

Beyond the animals: elements matter too

Each year also has an element (Wood, Fire, Earth, Metal or Water) and a yin or yang polarity, and the elements interact in two cycles. In the generating cycle, Wood feeds Fire, Fire makes Earth, Earth bears Metal, Metal carries Water and Water nourishes Wood. In the controlling cycle, Wood parts Earth, Earth dams Water, Water quenches Fire, Fire melts Metal and Metal cuts Wood. A Fire person and a Wood person, for example, have a supportive dynamic, while Fire and Water can be both stimulating and draining.

The easy way to find your year's element is the last digit of your birth year: 0 or 1 is Metal, 2 or 3 Water, 4 or 5 Wood, 6 or 7 Fire, and 8 or 9 Earth (again, based on the Lunar New Year). To go deeper, a fuller reading compares the four pillars of each person's birth chart, particularly the Day Master. The animal sign is only one of the four.

How to use compatibility wisely

• Use it as a conversation, not a rule. "You're a Tiger, I'm a Monkey, we should be at war" is a charming way to talk about real differences.
• A clash can be productive. Opposites often make good business partners and good parents because they cover each other's blind spots.
• A match does not guarantee ease. Two secret friends can still need to learn to communicate.
• Look at the whole person. Birth hour, element, temperament, values and shared goals matter more than any animal.
• Never make big life decisions on a chart. Traditions like this are for reflection.

Fivefold goes one step beyond the animal sign. In the app, you can compare your element, Day Master and sign with the people in your circle and share the result with them. For this year's picture, see 2027 Fire Goat predictions.