The short answer
Expected grade = school year − the fall the child first meets the state’s kindergarten cutoff. A child must be 5 by the cutoff (September 1 in Texas, California and many other states) to start kindergarten that fall. Born May 10, 2015 in Texas → kindergarten in fall 2020 → 6th grade in 2026–27, class of 2033. Born September 2, 2020 in Texas → one day past the cutoff → kindergarten in 2026–27, not 1st grade.US schools place children by age, and the dividing line is the state’s kindergarten cutoff date. A child who turns 5 on or before that date can start kindergarten that fall; after that, they move up one grade each year. The calculator applies your state’s official cutoff to the birth date you enter.
How the grade is worked out
There are three steps, and the tool shows each one:
- Find the cutoff. For example, Texas: must be age 5 on or before September 1.
- Find the first eligible fall. The child born May 10, 2015 turned 5 on May 10, 2020 — before September 1, 2020 — so kindergarten started in fall 2020.
- Count forward. 2020–21 kindergarten, 2021–22 1st grade … 2026–27 6th grade. Twelfth grade ends in spring 2033, so this student is in the class of 2033.
The tool also reports age on the cutoff date for the school year you pick. For that student, on September 1, 2026, it is 11 years 3 months. A child whose age on the cutoff is just over a whole year was born right before the cutoff and will be among the youngest in the class; one who is almost a year older was born right after it.
Grade by age on the cutoff date
Once you know a child’s age on the cutoff date, the grade follows directly — this is the same rule in every state with a fixed date:
| Age on the cutoff date | Expected grade | Age on the cutoff date | Expected grade |
|---|---|---|---|
| 4 | Pre-K age | 11 | 6th grade |
| 5 | Kindergarten | 12 | 7th grade |
| 6 | 1st grade | 13 | 8th grade |
| 7 | 2nd grade | 14 | 9th grade |
| 8 | 3rd grade | 15 | 10th grade |
| 9 | 4th grade | 16 | 11th grade |
| 10 | 5th grade | 17 | 12th grade |
“Age” here means completed years on the cutoff date, so a child who turns 11 one day after the cutoff counts as 10 and is expected in 5th grade. That one-day boundary is exactly why the tool asks for the full birth date rather than just the year.
Same birthday, different grade
Because cutoffs vary from July 31 to the end of December, the same birthday can put a child in different grades depending on the state. Here is what the calculator returns for the 2026–27 school year (K = kindergarten; “by” means on or before):
| Born | State and cutoff | Starts K | 2026–27 |
|---|---|---|---|
| Sept. 1, 2020 | Texas: by Sept. 1 | Fall 2025 | 1st grade |
| Sept. 2, 2020 | Texas: by Sept. 1 | Fall 2026 | K |
| Sept. 15, 2020 | Iowa: by Sept. 15 | Fall 2025 | 1st grade |
| Aug. 1, 2020 | Indiana: by Aug. 1 | Fall 2025 | 1st grade |
| Aug. 1, 2020 | Kentucky: before Aug. 1 | Fall 2026 | K |
| Oct. 10, 2020 | Connecticut: by Sept. 1 | Fall 2026 | K |
| Oct. 10, 2020 | Maine: by Oct. 15 | Fall 2025 | 1st grade |
| Dec. 20, 2020 | Vermont: before Jan. 1 | Fall 2025 | 1st grade |
The wording matters. Indiana says “on or prior to August 1” and Kentucky says “before August 1,” so a child born exactly on August 1 starts a year apart in the two states. The full list is on the kindergarten cutoff dates page.
What grade am I in by birth year (2026-27)?
Most people search by birth year, but a year spans two grades because the cutoff falls in late summer or fall. The table uses the most common rule, age 5 on or before September 1 (Texas, California, Florida and 16 other states in the 2026 ECS data), for the 2026-27 school year.
Expected grade in 2026-27 for a September 1 cutoff state
| Born between | Grade 2026-27 | Class of |
|---|---|---|
| Sept. 2, 2020 and Sept. 1, 2021 | Kindergarten | 2039 |
| Sept. 2, 2019 and Sept. 1, 2020 | 1st grade | 2038 |
| Sept. 2, 2018 and Sept. 1, 2019 | 2nd grade | 2037 |
| Sept. 2, 2017 and Sept. 1, 2018 | 3rd grade | 2036 |
| Sept. 2, 2016 and Sept. 1, 2017 | 4th grade | 2035 |
| Sept. 2, 2015 and Sept. 1, 2016 | 5th grade | 2034 |
| Sept. 2, 2014 and Sept. 1, 2015 | 6th grade | 2033 |
| Sept. 2, 2013 and Sept. 1, 2014 | 7th grade | 2032 |
| Sept. 2, 2012 and Sept. 1, 2013 | 8th grade | 2031 |
| Sept. 2, 2011 and Sept. 1, 2012 | 9th grade | 2030 |
| Sept. 2, 2010 and Sept. 1, 2011 | 10th grade | 2029 |
| Sept. 2, 2009 and Sept. 1, 2010 | 11th grade | 2028 |
| Sept. 2, 2008 and Sept. 1, 2009 | 12th grade | 2027 |
Reading it: someone born March 3, 2014 falls in the row “Sept. 2, 2013 and Sept. 1, 2014”, so 7th grade. Someone born October 20, 2014 is in the row above it, 6th grade, even though both were born in 2014. This matches the worked example at the top of the page: May 10, 2015 lands in 6th grade, class of 2033.
States with other dates shift the rows. In Maine (October 15) the October 20 birthday is still 6th grade, but an October 10 birthday moves up to 7th. Check your state’s rule on the kindergarten cutoff date by state list, and see what each grade means for nightly workload in the homework minutes by grade guide.
States without a single cutoff
Four states don’t set a statewide date. Massachusetts lets each district set its own minimum age, New York leaves the age to the school district, Pennsylvania lets districts set the age within a statutory minimum, and New Hampshire has no cutoff in statute or regulation. For these, the calculator shows a range: the grade under the earliest statewide cutoff in our table (Hawaii and Nebraska, July 31) and under the latest (Vermont, before January 1). If both give the same grade, the answer is exact anyway. If not, call the district enrollment office.
Ohio is a special case: the rule is age 5 by the first day of school, which each district chooses. Add the first day in the optional box and the answer becomes exact.
When the real grade differs
The calculator answers “what grade by age.” Real placement can differ for a few common reasons:
- Redshirting — a family chooses to start kindergarten a year after the child first becomes eligible.
- Early entry — a child who misses the cutoff is admitted anyway, where the district allows it.
- Moving states — a child who started school under another state’s cutoff keeps their place in the sequence or is re-placed; transfer rules vary, so ask the new district.
- Retention or acceleration — repeating or skipping a grade shifts everything by a year.
If a student’s grade doesn’t match the result, one of these is almost always the reason.
Related tools
- Look up every state’s rule on the kindergarten cutoff dates page.
- See how much nightly homework is typical for that grade with the homework time calculator.
- Check the school bag with the backpack weight calculator.
- Counting down already? Try days until summer.
Frequently asked questions
What grade should my child be in for their age?
What grade is a 10-year-old in, or a 7-year-old?
What grade is a 15-year-old in the US?
What grade am I in by birth year?
My child was born just after the cutoff. Can they start early?
Why does the tool show two grades for New York or Pennsylvania?
How does Ohio’s cutoff work?
Does the tool account for kids who were held back or skipped a grade?
Sources & method
- Kindergarten entry cutoffs: Education Commission of the States, 50-State Comparison: State K-3 Policies (published September 15, 2026). Ohio is shown with ECS’s wording and was not cross-checked against Ohio statute.
- Method: kindergarten year = first fall in which the child’s 5th birthday falls on or before the cutoff (strictly before, where the state says “before”). January cutoffs apply to the following January. Grade = school year − kindergarten year.
- School years switch on July 1 in this tool. Leap-day birthdays are treated as March 1 in non-leap years.
Formulas checked October 2026. Spotted an error? Tell us via the about page.
