[School year 2021] Date of birth and age of 3rd grade in high school

Calculate date of birth and age from grade

Date of birth and age of 3rd grade in high school as of School year 2021(Reiwa 3).
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 2021" is from April 1, 2021 to March 31, 2022.

School year 2021(Reiwa 3) - 3rd grade in high school

School year 2021
(Reiwa 3)
April 2, 2021 – April 1, 2022
Grade 3rd grade in high school
Date of birth April 2, 2003 – April 1, 2004
Age 17 years old – 18 years old
If your birthday has not yet come after April 2nd : 17 years old
If your birthday is after April 2nd : 18 years old
Sexagenary cycle
Born in 2003 : 未(Hitsuji 未(Hitsuji))
Born in 2004 : 申(Saru 申(Saru))

Grade list

DateGrade Age
April 2, 2003 – April 1, 2004 Birth
April 2, 2004 – April 1, 2005 0 – 1
April 2, 2005 – April 1, 2006 1 – 2
April 2, 2006 – April 1, 2007 2 – 3
April 2, 2007 – April 1, 2008 1st year of kindergarten 3 – 4
April 2, 2008 – April 1, 2009 2nd year of kindergarten 4 – 5
April 2, 2009 – April 1, 2010 3rd year of kindergarten 5 – 6
April 2, 2010 – April 1, 2011 1st grade in elementary school 6 – 7
April 2, 2011 – April 1, 2012 2nd grade in elementary school 7 – 8
April 2, 2012 – April 1, 2013 3rd grade in elementary school 8 – 9
April 2, 2013 – April 1, 2014 4th grade in elementary school 9 – 10
April 2, 2014 – April 1, 2015 5th grade in elementary school 10 – 11
April 2, 2015 – April 1, 2016 6th grade in elementary school 11 – 12
April 2, 2016 – April 1, 2017 1st grade in junior high school 12 – 13
April 2, 2017 – April 1, 2018 2nd grade in junior high school 13 – 14
April 2, 2018 – April 1, 2019 3rd grade in junior high school 14 – 15
April 2, 2019 – April 1, 2020 1st grade in high school 15 – 16
April 2, 2020 – April 1, 2021 2nd grade in high school 16 – 17
April 2, 2021 – April 1, 2022 3rd grade in high school 17 – 18
April 2, 2022 – April 1, 2023 1st year university student 18 – 19
April 2, 2023 – April 1, 2024 2nd year university student 19 – 20
April 2, 2024 – April 1, 2025 3rd year university student 20 – 21
April 2, 2025 – April 1, 2026 4th year university student 21 – 22
April 2, 2026 – April 1, 2027 1st year master's student 22 – 23
April 2, 2027 – April 1, 2028 2nd year master's student 23 – 24
April 2, 2028 – April 1, 2029 1st year Ph.D. student 24 – 25
April 2, 2029 – April 1, 2030 2nd year Ph.D. student 25 – 26
April 2, 2030 – April 1, 2031 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.

Other years