Japanese Kanreki and Longevity Celebrations: The Kanji Behind Each Age

The core idea: the age is hidden in the kanji

From seventy-seven upwards, each name ends in ju (寿), long life, and the kanji before it carries the age. You find it by taking that kanji apart. 米, rice, is drawn as two dots, a cross and two legs, and people read that as 八, 十, 八: eighty-eight. Beiju is literally 'rice longevity', and the rice is a number in disguise.

Some characters need one extra step: first write them in a cursive or shortened form, then read the numbers. The diagram puts six puzzles side by side, and it is worth trying each one before reading the right-hand column.

UnihongoKanji

父ちちの還暦かんれき祝いいわいに、家族かぞくで温泉おんせんに行きいきます。For my father's sixtieth, the family is going to a hot spring.

The longevity celebrations at a glance

Here is the whole ladder with the source of each number. The ages are the traditional ones; how to count them is discussed further down.

Birthday customs in general, from children's parties to coming of age, have a separate guide; this one stays with the long-life names.

Kanreki at sixty: the calendar comes home

Kanreki (還暦) is literally 'return of the calendar'. The year you were born has a full eto, one of sixty pairs of a stem and a zodiac sign, and that exact pair takes sixty years to come round again. The diagram follows someone born in 1966, a hinoe-uma year. Every twelve years the horse returns, each time with a different stem, and only in 2026 does hinoe-uma itself come back. The person has gone once round the whole calendar and starts again.

That is the logic behind the red. Starting again means being born again, and a baby in Japanese is akachan, literally 'little red one'. So the family gives red: traditionally a chanchanko, a padded sleeveless vest, and a red cap, though many now choose a red sweater or scarf the person will actually wear. Kanreki is also the one celebration whose timing never needed adjusting, because sixty-one by the traditional count and sixty by actual age fall in the same calendar year.

UnihongoKanji

父ちちの還暦かんれき祝いいわいに、家族かぞくで温泉おんせんに行きいきます。For my father's sixtieth, the family is going to a hot spring.

Koki at seventy: the one named after a poem

Koki (古希) breaks the pattern because it comes from literature, not from a kanji shape. The Tang poet Du Fu wrote that living to seventy has been rare since ancient times, jinsei shichijū korai mare nari in Japanese, and koki is literally 'rare since of old'. The original kanji was 稀, rare; 希 is the simpler modern substitute, and both spellings are correct. Seventy is hardly rare now, and a seventy-year-old at a koki lunch is likely to say so.

A daughter is telling a colleague about the weekend.

The kanji puzzles one by one

Kiju (喜寿), 77, is literally 'joy longevity'. Written in sōsho, the flowing cursive script, 喜 turns into a shape that can be read as 七十七, seven, ten, seven. It is regular enough to have its own printed character, 㐂, found in older texts.

Sanju (傘寿), 80, is 'umbrella longevity'. The shortened form of 傘 is 仐, which looks like 八 perched on 十. Sotsuju (卒寿), 90, works the same way: the shortened form of 卒 is 卆, 九 on top of 十.

Beiju (米寿), 88, needs no rewriting at all, which may be why it is the best known. Hakuju (白寿), 99, is the cleverest. 白, white, is 百, a hundred, with the top stroke 一, one, taken off. A hundred minus one is ninety-nine.

A grandson is explaining the names to a friend from abroad.

Beyond the basics: 81, 108, 111 and the hundredth birthday

The puzzle habit did not stop at 99. Hanju (半寿), 81, splits 半, half, into 八, 十 and 一; in the world of shōgi it is also called banju, because the board has nine by nine, eighty-one squares. Chaju (茶寿), 108, uses 茶, tea: the grass radical on top looks like two 十, making twenty, and the rest resembles 八十八, so twenty plus eighty-eight gives a hundred and eight. Kōju (皇寿), 111, joins 白, ninety-nine, to 王, which splits into 十 and 二, twelve.

A hundred, hyakuju, is the age the state marks. Each September, for Rōjin no hi, the Day for the Elderly on 15 September, everyone reaching a hundred during the fiscal year receives a congratulatory letter from the Prime Minister and a commemorative silver cup. In 2026 that was 54,294 people, and the total number of centenarians passed 100,000 for the first time. Since 2016 the cup has been nickel silver rather than pure silver, to hold down the cost.

Traditional age or actual age?

The celebrations were traditionally counted in kazoedoshi, the old system in which you are one at birth and a year older every New Year's Day. By that count, kiju at 77 falls in the year of your seventy-sixth birthday. Kanreki is the exception that fits both systems. Today many families use man-nenrei, actual age, the number everyone knows, and religious sites differ too: Shiogama Jinja's 2026 list gives kiju to people born in 1950, by the traditional count, while Kawasaki Daishi's table gives it to those born in 1949, by actual age.

There is no wrong answer, but there is a polite one: ask the family which count they use before you plan a card or gift. Timing is flexible too: near the birthday, at New Year, or around Keirō no hi, Respect for the Aged Day, the third Monday of September. A granddaughter is checking the plan with her mother.

What people say at the table

At the meal itself the language is warm and fairly fixed. Grandchildren speak casually, in-laws and guests use desu and masu, and a card or speech uses the most formal forms. The celebrant usually deflects with a joke about age, and the expected reply is that they still look young. Here is a beiju dinner at a restaurant, with the family around the table.

Common mistakes with longevity celebrations

Reading 米寿 as komeju. The cause is the everyday word kome, rice. In the name the kanji takes its on'yomi, bei: beiju. The same goes for 白寿, which is hakuju, not shiroju.

Mixing up sanju and sanjū. Sanju, 傘寿, is eighty; sanjū, 三十, is thirty. The long vowel is the whole difference, so keep both syllables of sanju short.

Celebrating hakuju at a hundred. The cause is the 百 in the explanation. 白 is 百 minus one, so hakuju is ninety-nine, and a hundred is hyakuju.

Planning kiju for the seventy-seventh birthday when the family counts the traditional way, or the reverse. The cause is the two counting systems; one question to the family settles it.