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Enter a date of birth and your state's kindergarten cutoff to find the high school graduation year (the "class of" year) that goes with it. A child born on March 15, 2021 is 5 by a September 1 cutoff in 2026, starts kindergarten that fall and graduates with the class of 2039. Students can also enter the grade they are in now.
A child starts kindergarten in the fall of the year they are 5 on or before the cutoff date, then moves up a grade every school year. Kindergarten plus grades 1 to 12 is 13 school years, so the high school class year is the kindergarten year plus 13. A school year is named by the fall it starts in (2026-27 starts in 2026), and for "the grade this school year" the calculator treats August 1 as the day a new school year begins.
It assumes the child starts on time and does not skip or repeat a grade. It follows the US K-12 system; other countries group school years differently.
Each state sets the date by which a child must turn 5 to start kindergarten that school year. Most use a date between August 1 and October 1, and September 1 is the most common; a few use a later date such as December 1 or December 31, and some leave it to each district. A birthday on the cutoff day itself counts: with a September 1 cutoff, a child born on September 1 starts that year.
Cutoffs change from time to time, and when a state moves its date, children born in the gap shift a year. Check your state's education department or your school district before counting on one, then pick it in the calculator.
A child born in the two months before the cutoff is one of the youngest in the class, and some parents choose to wait a year before kindergarten, which puts the child in the next class. When a birthday is that close, the calculator names both class years. A child born just after the cutoff is one of the oldest; a few districts allow early entry, usually after an assessment.
For a September 1 cutoff, each class runs from births on September 2 to births on September 1 of the next year. The grades are for the 2026-27 school year.
| Class of | Born | Grade in 2026-27 |
|---|---|---|
| 2027 | Sep 2, 2008 to Sep 1, 2009 | 12th grade |
| 2028 | Sep 2, 2009 to Sep 1, 2010 | 11th grade |
| 2029 | Sep 2, 2010 to Sep 1, 2011 | 10th grade |
| 2030 | Sep 2, 2011 to Sep 1, 2012 | 9th grade |
| 2031 | Sep 2, 2012 to Sep 1, 2013 | 8th grade |
| 2032 | Sep 2, 2013 to Sep 1, 2014 | 7th grade |
| 2033 | Sep 2, 2014 to Sep 1, 2015 | 6th grade |
| 2034 | Sep 2, 2015 to Sep 1, 2016 | 5th grade |
| 2035 | Sep 2, 2016 to Sep 1, 2017 | 4th grade |
| 2036 | Sep 2, 2017 to Sep 1, 2018 | 3rd grade |
| 2037 | Sep 2, 2018 to Sep 1, 2019 | 2nd grade |
| 2038 | Sep 2, 2019 to Sep 1, 2020 | 1st grade |
| 2039 | Sep 2, 2020 to Sep 1, 2021 | kindergarten |
| 2040 | Sep 2, 2021 to Sep 1, 2022 | pre-K |
| 2041 | Sep 2, 2022 to Sep 1, 2023 | not in school yet |
| 2042 | Sep 2, 2023 to Sep 1, 2024 | not in school yet |
| 2043 | Sep 2, 2024 to Sep 1, 2025 | not in school yet |
| 2044 | Sep 2, 2025 to Sep 1, 2026 | not in school yet |
Count the grades left after this one and add them to the year this school year ends. A 10th grader in 2026-27 has 11th and 12th grade to go, so graduates in spring 2029. A senior graduates at the end of the current school year: the class of 2027 this year. Four years of college started straight after would end in 2033.
To find a birth year from an age, use the birth year calculator. To see which generation a class belongs to, use the generation calculator. To find the weekday a first day of school falls on, use the day of the week calculator.
From kindergarten to graduation is 13 years of milestones. To lay a child's school years, or a whole family's, out year by year, Preceden can put them on a timeline.