Japan School Age Calculator (Elementary, Middle, High School, Retirement by Birth Year)

Enter your birth year to calculate your exact age at each stage of Japan's education system: elementary school, middle school, high school, university, and retirement (6-3-3-4 system).

[[ labels.year_suffix ]] [[ labels.month_suffix ]]
[[ labels.col_birth_year ]] [[ labels.col_wareki ]] [[ labels.col_age ]] Compulsory Education High School / University [[ labels.col_univ_grad ]] [[ labels.col_retire_60 ]]
[[ labels.col_elementary ]] [[ labels.col_junior_high ]] [[ labels.col_high_school ]] [[ labels.col_high_grad ]] 60 65
[[ birthYearRange(row.birthYear) ]] [[ row.wareki ]] [[ row.age + labels.age_suffix ]] [[ row.elementaryEntry ]] [[ row.juniorHighEntry ]] [[ row.highSchoolEntry ]] [[ row.highSchoolGrad ]] [[ row.universityGrad ]] [[ row.retirement60 ]] [[ row.retirement65 ]]
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Tips

  • Enter your birth year to highlight and scroll to your row.
  • Based on Japan's school system (6-3-3-4): 6 years elementary, 3 junior high, 3 high school, 4 university.
  • April 2 birthdays are the baseline. April 1 birthdays subtract 1 year from each column.
  • The 6-3-3-4 system was established in 1947 under the Fundamental Law of Education and School Education Act. Those born before approximately 1940 (Shōwa 15) attended school under Japan's pre-war educational system (旧制), so the school-year figures for those rows are for reference only.
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FAQ

The table uses April 2 as its baseline, so if you were born on April 1 subtract 1 year from every column. For example, if the table shows elementary school entry in 2000, you actually started in 1999.

Japan's current 6-3-3-4 system began in 1947, so those born before approximately 1940 (Shōwa 15) attended the pre-war school system (旧制). The school-year figures for those rows are for reference only.

Both columns are shown because mandatory retirement ages vary by employer. Since 2025, companies in Japan are encouraged to offer employment opportunities up to age 70, so check your employer's specific policy.
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Side Note — Why April 1 Birthdays Are One Year Ahead

Under Japan's School Education Act, children enroll in the first grade "at the start of the first school year after turning 6." Since the school year begins on April 1, a child born on April 1 turns exactly 6 on that day and joins the same cohort as those born up to March 31 of the same year.

As a result, April 2 is effectively the new school-year cutoff, and life stage calculations use birth year + 7 = elementary school entry year for April 2 birthdays.

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