Age and school-year estimates for those born in 1931

Man-nenrei, kazoedoshi, wareki, eto, and school years for people born in 1931, 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)

95years

Legal age (31 Dec)

95years

Kazoedoshi

96years

Wareki (assumes 2 April)

昭和6年4月2日

Eto

辛未（未）

Elementary school

April 1938

Junior high

April 1944

High school

April 1947

High-school graduation

March 1950

Kanreki (approx. year)

1990

Facts on this page

・Legal age as of 30 August 2026 is 95

・Legal age on 31 December 2026 is 95

・Kazoedoshi is 96

・Wareki date of birth (assumes 2 April) is 昭和6年4月2日

・Eto is 辛未 (未)

・Elementary school starts April 1938

・Junior high starts April 1944

・High school starts April 1947

・High-school graduation is March 1950

・Kanreki (kazoedoshi) approx. year is 1990

・Yakudoshi (male, kazoedoshi 96): none

・Yakudoshi (female, kazoedoshi 96): 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.