[School year 1981] Date of birth and age of 4th grade in elementary school

Calculate date of birth and age from grade

Date of birth and age of 4th grade in elementary school as of School year 1981(Showa 56).
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 1981" is from April 1, 1981 to March 31, 1982.

School year 1981(Showa 56) - 4th grade in elementary school

School year 1981
(Showa 56)
April 2, 1981 – April 1, 1982
Grade 4th grade in elementary school
Date of birth April 2, 1971 – April 1, 1972
Age 9 years old – 10 years old
If your birthday has not yet come after April 2nd : 9 years old
If your birthday is after April 2nd : 10 years old
Sexagenary cycle
Born in 1971 : 亥(I 亥(I))
Born in 1972 : 子(Ne 子(Ne))

Grade list

DateGrade Age
April 2, 1971 – April 1, 1972 Birth
April 2, 1972 – April 1, 1973 0 – 1
April 2, 1973 – April 1, 1974 1 – 2
April 2, 1974 – April 1, 1975 2 – 3
April 2, 1975 – April 1, 1976 1st year of kindergarten 3 – 4
April 2, 1976 – April 1, 1977 2nd year of kindergarten 4 – 5
April 2, 1977 – April 1, 1978 3rd year of kindergarten 5 – 6
April 2, 1978 – April 1, 1979 1st grade in elementary school 6 – 7
April 2, 1979 – April 1, 1980 2nd grade in elementary school 7 – 8
April 2, 1980 – April 1, 1981 3rd grade in elementary school 8 – 9
April 2, 1981 – April 1, 1982 4th grade in elementary school 9 – 10
April 2, 1982 – April 1, 1983 5th grade in elementary school 10 – 11
April 2, 1983 – April 1, 1984 6th grade in elementary school 11 – 12
April 2, 1984 – April 1, 1985 1st grade in junior high school 12 – 13
April 2, 1985 – April 1, 1986 2nd grade in junior high school 13 – 14
April 2, 1986 – April 1, 1987 3rd grade in junior high school 14 – 15
April 2, 1987 – April 1, 1988 1st grade in high school 15 – 16
April 2, 1988 – April 1, 1989 2nd grade in high school 16 – 17
April 2, 1989 – April 1, 1990 3rd grade in high school 17 – 18
April 2, 1990 – April 1, 1991 1st year university student 18 – 19
April 2, 1991 – April 1, 1992 2nd year university student 19 – 20
April 2, 1992 – April 1, 1993 3rd year university student 20 – 21
April 2, 1993 – April 1, 1994 4th year university student 21 – 22
April 2, 1994 – April 1, 1995 1st year master's student 22 – 23
April 2, 1995 – April 1, 1996 2nd year master's student 23 – 24
April 2, 1996 – April 1, 1997 1st year Ph.D. student 24 – 25
April 2, 1997 – April 1, 1998 2nd year Ph.D. student 25 – 26
April 2, 1998 – April 1, 1999 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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