Chinese Zodiac Compatibility Calculator

Work out chinese zodiac compatibility instantly with clear inputs, formula shown and shareable results.

About Chinese Zodiac Compatibility Calculator

The animal is the birth year modulo twelve offset from 1900 (a Rat year), and the score follows the classical trine, opposition and square rules based on positions apart in the cycle. For entertainment. The cycle arithmetic is exact, though it uses the Gregorian year rather than the lunar new year, so births in January or early February may fall in the previous animal year.

Formulas

Animal

animal index = (birth year - 1900) mod 12, starting from Rat

Score rule

four apart 90, neutral 65, same animal 70, three apart 50, opposite 40

Worked example

With the default values below, Chinese Zodiac Compatibility Calculator returns Traditional compatibility score of 90. Change any input above and every figure here is recalculated in your browser.

Inputs used

First birth yearaccepts 1,900–2,100: 1,990
Second birth yearaccepts 1,900–2,100: 1,994

Results

Traditional compatibility score: 90
Zodiac animals: Horse and Dog
Traditional relationship: Trine - traditionally the strongest match
Positions apart in the twelve year cycle: 4

Step by step

1Values used
2Animal
3Score rule
4Traditional compatibility score= 90
5Zodiac animals= Horse and Dog
6Traditional relationship= Trine - traditionally the strongest match
7Positions apart in the twelve year cycle= 4

Assumptions and limits

The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Chinese Zodiac Compatibility figure worked out?

animal index = (birth year - 1900) mod 12, starting from Rat. The animal is the birth year modulo twelve offset from 1900 (a Rat year), and the score follows the classical trine, opposition and square rules based on positions apart in the cycle.

Why does this matter?

For entertainment. The cycle arithmetic is exact, though it uses the Gregorian year rather than the lunar new year, so births in January or early February may fall in the previous animal year.

What do I need to enter?

Enter first birth year, second birth year. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.