[School year 2004] Date of birth and age of 1st year of kindergarten

Calculate date of birth and age from grade

Date of birth and age of 1st year of kindergarten as of School year 2004(Heisei 16).
You can also check the age before and after the birthday, and the Sexagenary cycle.
In addition, you can easily check Grade list such as date of birth, grade, age, etc. for each year in the table.

School year starts on April 1st and ends on March 31st of the following year.
"School year 2004" is from April 1, 2004 to March 31, 2005.

School year 2004(Heisei 16) - 1st year of kindergarten

School year 2004
(Heisei 16)
April 2, 2004 – April 1, 2005
Grade 1st year of kindergarten
Date of birth April 2, 2000 – April 1, 2001
Age 3 years old – 4 years old
If your birthday has not yet come after April 2nd : 3 years old
If your birthday is after April 2nd : 4 years old
Sexagenary cycle
Born in 2000 : 辰(Tatsu 辰(Tatsu))
Born in 2001 : 巳(Mi 巳(Mi))

Grade list

DateGrade Age
April 2, 2000 – April 1, 2001 Birth
April 2, 2001 – April 1, 2002 0 – 1
April 2, 2002 – April 1, 2003 1 – 2
April 2, 2003 – April 1, 2004 2 – 3
April 2, 2004 – April 1, 2005 1st year of kindergarten 3 – 4
April 2, 2005 – April 1, 2006 2nd year of kindergarten 4 – 5
April 2, 2006 – April 1, 2007 3rd year of kindergarten 5 – 6
April 2, 2007 – April 1, 2008 1st grade in elementary school 6 – 7
April 2, 2008 – April 1, 2009 2nd grade in elementary school 7 – 8
April 2, 2009 – April 1, 2010 3rd grade in elementary school 8 – 9
April 2, 2010 – April 1, 2011 4th grade in elementary school 9 – 10
April 2, 2011 – April 1, 2012 5th grade in elementary school 10 – 11
April 2, 2012 – April 1, 2013 6th grade in elementary school 11 – 12
April 2, 2013 – April 1, 2014 1st grade in junior high school 12 – 13
April 2, 2014 – April 1, 2015 2nd grade in junior high school 13 – 14
April 2, 2015 – April 1, 2016 3rd grade in junior high school 14 – 15
April 2, 2016 – April 1, 2017 1st grade in high school 15 – 16
April 2, 2017 – April 1, 2018 2nd grade in high school 16 – 17
April 2, 2018 – April 1, 2019 3rd grade in high school 17 – 18
April 2, 2019 – April 1, 2020 1st year university student 18 – 19
April 2, 2020 – April 1, 2021 2nd year university student 19 – 20
April 2, 2021 – April 1, 2022 3rd year university student 20 – 21
April 2, 2022 – April 1, 2023 4th year university student 21 – 22
April 2, 2023 – April 1, 2024 1st year master's student 22 – 23
April 2, 2024 – April 1, 2025 2nd year master's student 23 – 24
April 2, 2025 – April 1, 2026 1st year Ph.D. student 24 – 25
April 2, 2026 – April 1, 2027 2nd year Ph.D. student 25 – 26
April 2, 2027 – April 1, 2028 3rd year Ph.D. student 26 – 27

*Primary school(6 years) / Junior high school(3 years) / High school(3 years) / Four-year university(4 years) / Master's course(2 years) / Doctoral course(3 years)

*Age does not take into account repeat grades or ronin.

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