Age and school-year estimates for those born in 2004

Man-nenrei, kazoedoshi, wareki, eto, and school years for people born in 2004, 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)

22years

Legal age (31 Dec)

22years

Kazoedoshi

23years

Wareki (assumes 2 April)

平成16年4月2日

Eto

甲申（申）

Elementary school

April 2011

Junior high

April 2017

High school

April 2020

High-school graduation

March 2023

Kanreki (approx. year)

2063

Facts on this page

・Legal age as of 30 August 2026 is 22

・Legal age on 31 December 2026 is 22

・Kazoedoshi is 23

・Wareki date of birth (assumes 2 April) is 平成16年4月2日

・Eto is 甲申 (申)

・Elementary school starts April 2011

・Junior high starts April 2017

・High school starts April 2020

・High-school graduation is March 2023

・Kanreki (kazoedoshi) approx. year is 2063

・Yakudoshi (male, kazoedoshi 23): none

・Yakudoshi (female, kazoedoshi 23): 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.