Chinese Zodiac Calculator (Ben Ming Nian / Tai Sui)
Find your Chinese zodiac animal and see how this year's Tai Sui interacts with it — clash, harmony, harm, or punishment
Enter your birth year using the Gregorian (Western) calendar
Enter the month you were born (1–12)
Enter the day you were born (1–31) — this matters because Chinese zodiac years start on Chinese New Year, not January 1st
Your Zodiac Animal—
This Year's Animal—
This Year's Tai Sui Relationship
What does this mean? These relationships come from fixed traditional definitions in the 12 Earthly Branches system — the same framework used in BaZi and other Chinese astrology. More than one relationship can apply in the same year, or none at all.
What Is the Chinese Zodiac?
The Chinese Zodiac (生肖, Sheng Xiao) assigns one of 12 animals — Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig — to each lunar year in a repeating 12-year cycle. Which animal is yours depends on the lunar year you were born in, not the Gregorian calendar year. Because the Chinese lunar year begins on Chinese New Year (a date that shifts between late January and mid-February each year), someone born in early January or the first weeks of February may actually belong to the previous lunar year's animal — this is one of the most common points of confusion in casual zodiac lookups, and this calculator checks the actual Chinese New Year date for your birth year to get it right.
What Is Tai Sui?
Tai Sui (太歲) refers to the governing influence associated with each year in Chinese folk astrology, symbolically tied to that year's ruling zodiac animal. Every zodiac animal has a defined relationship with the current year's animal — a clash (沖), a harmony (合), a harm (害), or one of several punishment relationships (刑) — based on fixed positions in the traditional 12 Earthly Branches cycle. These relationships are structural, not random: the same pair of animals always has the same relationship, year after year, which is what makes it possible to calculate rather than guess.
Ben Ming Nian — Your Own Zodiac Year
Once every 12 years, the current year's zodiac animal matches your own — this is your Ben Ming Nian (本命年), sometimes translated as your "year of birth sign." Chinese folk tradition regards it as a year of heightened change and instability, and it's common practice for people to wear something red throughout the year — red underwear, red socks, or a red string bracelet — as a symbolic ward against misfortune. Four of the twelve animals (Dragon, Horse, Rooster, and Pig) are traditionally classified as "self-punishing" branches, so a Ben Ming Nian for one of these four is sometimes read with an extra layer of caution on top of the general Ben Ming Nian effect.
A Note on How This Calculator Works
This calculator determines your zodiac animal and this year's animal using the actual Chinese lunar calendar (via the same verified calendar-conversion library used in our BaZi calculator), then checks the pair against the traditional Six Clashes, Six Harmonies, Six Harms, Three Harmony Groups, and Three Punishments tables — cross-checked against multiple independent classical and reference sources. It's built as an educational and cultural reference tool reflecting a centuries-old tradition, not a scientific or medical instrument — treat your results as a starting point for exploring the tradition, not a prediction of what will happen.
FAQ
What is Ben Ming Nian (本命年)?
Ben Ming Nian is the year when the current zodiac animal matches your own birth-year animal — it comes around once every 12 years. Chinese folk tradition regards it as a year of heightened change, and many people wear something red throughout the year (underwear, socks, or a bracelet) as a symbolic ward against misfortune.
What does Chong Tai Sui (沖太歲) mean?
Chong Tai Sui means your birth animal directly opposes this year's ruling animal in the 12-branch cycle — for example Rat opposes Horse, and Tiger opposes Monkey. It's considered the most significant Tai Sui relationship in Chinese folk astrology, traditionally associated with a year that calls for extra care.
Why does my birth date matter, not just my birth year?
Chinese zodiac years follow the lunar calendar, which starts on Chinese New Year — not January 1st. If you were born in January or early-to-mid February, you may have been born before that year's Chinese New Year, which means your zodiac animal is actually the previous lunar year's animal. This calculator checks the exact Chinese New Year date for your birth year to get this right.
What's the difference between Chong, He, Hai, and Xing Tai Sui?
These are the four classical relationships between your zodiac animal and the current year's animal. Chong (clash) and Xing (punishment) are traditionally read as the relationships calling for more caution. He (harmony) is traditionally read as favorable. Hai (harm) is traditionally read as a milder caution than a direct clash. It's possible to have more than one relationship apply, or none at all in a comparatively neutral year.
Is this scientifically validated?
No. This tool reflects a centuries-old Chinese folk astrology tradition, not a scientific or medical instrument. The zodiac animal and Tai Sui relationship calculations themselves follow fixed traditional definitions, but the interpretations are cultural readings, not predictions — treat your results as a cultural reference point, not a guarantee of any outcome.