Age and school-year estimates for those born in 1904

Man-nenrei, kazoedoshi, wareki, eto, and school years for people born in 1904, as of 30 August 2026. If you know the month and day, use the age calculator (this page assumes 2 April for a year-level lookup).

As-of date：30 August 2026(updated to today when you view the page)

Legal age (today)

122years

Legal age (31 Dec)

122years

Kazoedoshi

123years

Wareki (assumes 2 April)

明治37年4月2日

Eto

甲辰（辰）

Elementary school

April 1911

Junior high

April 1917

High school

April 1920

High-school graduation

March 1923

Kanreki (approx. year)

1963

Facts on this page

・Legal age as of 30 August 2026 is 122

・Legal age on 31 December 2026 is 122

・Kazoedoshi is 123

・Wareki date of birth (assumes 2 April) is 明治37年4月2日

・Eto is 甲辰 (辰)

・Elementary school starts April 1911

・Junior high starts April 1917

・High school starts April 1920

・High-school graduation is March 1923

・Kanreki (kazoedoshi) approx. year is 1963

・Yakudoshi (male, kazoedoshi 123): none

・Yakudoshi (female, kazoedoshi 123): none

Assumptions

For searches without a month and day, we assume a 2 April birthday.

The static as-of date (build time) is 30 August 2026. After load we update it to today.