Japanese Zodiac Explained: 12 Animals, Years, Meanings, and a Year Calculator

The Japanese zodiac is a repeating 12-year cycle called the jūnishi. Each year is linked to an animal, from the Rat to the Boar.

What Is the Japanese Zodiac?

The Japanese zodiac is a cycle of 12 signs known as the 十二支（じゅうにし, jūnishi）, literally “the twelve branches.” Each branch is associated with an animal and repeats every 12 years.

In everyday Japanese, people also call the animal cycle 干支（えと, eto）. Strictly speaking, however, eto is a larger 60-part calendar system made by combining the ten heavenly stems with the twelve earthly branches. In casual conversation, Japanese speakers commonly use eto to mean “zodiac animal.”

Japanese Zodiac Animals in Order

Notice that the branch characters are not normally the same kanji used to write the animals. For example, the Rat branch is 子, while the animal “rat” is 鼠. The Boar branch is 亥, while “wild boar” is 猪.

Japanese Zodiac Year Calculator

Enter a Gregorian calendar year below. This calculator follows the modern Japanese convention in which the zodiac year changes on January 1.

Why can a Chinese zodiac calculator give a different answer?

Modern Japan celebrates New Year’s Day on January 1, so Japanese zodiac references usually treat January 1 as the beginning of the new animal year. Many Chinese zodiac calculators instead change signs at Lunar New Year, which falls in January or February. Someone born early in the year may therefore receive a different result depending on which convention a website uses.

For a site about Japanese language and culture, it is best to label the calculator clearly as a modern Japanese zodiac calculator.

How the Japanese Zodiac Is Used in Japan

1. New Year’s cards and decorations

The year’s animal appears on 年賀状（ねんがじょう, nengajō）, New Year’s cards, as well as on stamps, ornaments, calendars, sweets, and shrine or temple goods. Near the end of December, shops fill with designs based on the next year’s animal.

2. Talking about someone’s birth year

Japanese people may ask:

干支は何ですか。
Eto wa nan desu ka?
What is your zodiac animal?

A natural answer is:

私は午年です。
Watashi wa uma-doshi desu.
I was born in the Year of the Horse.

Because a sign repeats every 12 years, this question gives only a rough clue to age. Context is still needed.

3. Toshiotoko and toshionna

A man whose birth animal matches the current year is called a 年男（としおとこ, toshiotoko）. A woman in the same situation is a 年女（としおんな, toshionna）. The expressions are especially common around New Year and Setsubun.

Read our full guide: Toshiotoko and Toshionna Meaning.

4. Traditional time and directions

The twelve branches were historically used for more than years. They could label months, days, two-hour periods, and directions. The expression 午前（ごぜん, gozen, a.m.） and 午後（ごご, gogo, p.m.） preserves the branch 午, which marked noon.

Japanese Zodiac Meanings and Personality Traits

You will often see personality descriptions attached to the animals: Rats are called clever, Oxen patient, Tigers bold, and so on. These are popular cultural associations and entertainment—not scientifically established personality tests. They also vary by book, shrine, fortune-telling system, and country.

Is the Japanese Zodiac the Same as the Chinese Zodiac?

The systems share the same 12-branch foundation and almost the same animals. The most famous difference is the final sign:

• Japan: wild boar — 猪（いのしし, inoshishi）
• China and many English-language charts: pig

The branch itself is still 亥 in both systems. The difference lies in the animal associated with it and in how the animal name is interpreted locally.

See the detailed explanation: Year of the Boar in Japan: Inoshishi vs Pig.

Why Is the Zodiac Order Rat, Ox, Tiger…?

A famous folktale explains the order as the result of an animal race. The Rat rides on the Ox and jumps ahead at the finish, while the Cat misses the event after being tricked by the Rat. It is a memorable origin story, but historians do not treat the race as the proven creation of the zodiac. The branch system is much older, and exactly why each animal became attached to each branch is uncertain.

Read the complete tale and its historical caveat: Japanese Zodiac Order Story.

Useful Japanese Zodiac Vocabulary

Frequently Asked Questions

What is my Japanese zodiac animal?

Use your Gregorian birth year in the calculator above. In modern Japanese usage, the animal year usually changes on January 1.

Does Japan use the Lunar New Year for zodiac animals?

Japan used a lunisolar calendar historically, but modern New Year observances and ordinary zodiac-year references follow January 1. This is why Japanese and Chinese calculators can disagree for January or early-February birthdays.

Is “eto” the same as “jūnishi”?

Not technically. Jūnishi means the twelve branches. Eto properly refers to a 60-part stem-and-branch cycle, although everyday Japanese often uses eto for the 12 animals.

Why is there no cat in the Japanese zodiac?

The popular story says the Rat gave the Cat the wrong date. Historically, however, the animal associations developed before the familiar race story, and the exact reason for the animal list is uncertain.

Is the last Japanese zodiac animal a pig or a boar?

In Japan it is normally a wild boar, inoshishi. In China and many English charts, the same branch is represented as a pig.

Japanese Zodiac Summary