Age and school-year estimates for those born in 2021

Man-nenrei, kazoedoshi, wareki, eto, and school years for people born in 2021, 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)

5years

Legal age (31 Dec)

5years

Kazoedoshi

6years

Wareki (assumes 2 April)

令和3年4月2日

Eto

辛丑（丑）

Elementary school

April 2028

Junior high

April 2034

High school

April 2037

High-school graduation

March 2040

Kanreki (approx. year)

2080

Facts on this page

・Legal age as of 30 August 2026 is 5

・Legal age on 31 December 2026 is 5

・Kazoedoshi is 6

・Wareki date of birth (assumes 2 April) is 令和3年4月2日

・Eto is 辛丑 (丑)

・Elementary school starts April 2028

・Junior high starts April 2034

・High school starts April 2037

・High-school graduation is March 2040

・Kanreki (kazoedoshi) approx. year is 2080

・Yakudoshi (male, kazoedoshi 6): none

・Yakudoshi (female, kazoedoshi 6): 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.