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:

  1. Find the cutoff. For example, Texas: must be age 5 on or before September 1.
  2. 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.
  3. 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 dateExpected gradeAge on the cutoff dateExpected grade
4Pre-K age116th grade
5Kindergarten127th grade
61st grade138th grade
72nd grade149th grade
83rd grade1510th grade
94th grade1611th grade
105th grade1712th 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):

BornState and cutoffStarts K2026–27
Sept. 1, 2020Texas: by Sept. 1Fall 20251st grade
Sept. 2, 2020Texas: by Sept. 1Fall 2026K
Sept. 15, 2020Iowa: by Sept. 15Fall 20251st grade
Aug. 1, 2020Indiana: by Aug. 1Fall 20251st grade
Aug. 1, 2020Kentucky: before Aug. 1Fall 2026K
Oct. 10, 2020Connecticut: by Sept. 1Fall 2026K
Oct. 10, 2020Maine: by Oct. 15Fall 20251st grade
Dec. 20, 2020Vermont: before Jan. 1Fall 20251st 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 betweenGrade 2026-27Class of
Sept. 2, 2020 and Sept. 1, 2021Kindergarten2039
Sept. 2, 2019 and Sept. 1, 20201st grade2038
Sept. 2, 2018 and Sept. 1, 20192nd grade2037
Sept. 2, 2017 and Sept. 1, 20183rd grade2036
Sept. 2, 2016 and Sept. 1, 20174th grade2035
Sept. 2, 2015 and Sept. 1, 20165th grade2034
Sept. 2, 2014 and Sept. 1, 20156th grade2033
Sept. 2, 2013 and Sept. 1, 20147th grade2032
Sept. 2, 2012 and Sept. 1, 20138th grade2031
Sept. 2, 2011 and Sept. 1, 20129th grade2030
Sept. 2, 2010 and Sept. 1, 201110th grade2029
Sept. 2, 2009 and Sept. 1, 201011th grade2028
Sept. 2, 2008 and Sept. 1, 200912th grade2027

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.

Privacy The birth date stays on your device. Share links carry only the state and school year — never the birth date.

Frequently asked questions

What grade should my child be in for their age?
In most states, a child who turns 5 on or before the state’s cutoff date starts kindergarten that fall, then moves up one grade per year. So a child who is 5 on the cutoff is in kindergarten, 6 in 1st grade, and so on to 17 or 18 in 12th grade. The exact cutoff date decides which side of the line a fall birthday lands on.
What grade is a 10-year-old in, or a 7-year-old?
A 10-year-old is usually in 4th or 5th grade. A child who is already 10 on the cutoff date is typically in 5th grade; one who turns 10 after the cutoff is typically in 4th. By the same rule, a 7-year-old is usually in 1st or 2nd grade: in a September 1 state such as Texas, birthdays from September 2, 2018 through September 1, 2019 mean 2nd grade in 2026-27. Enter the birth date for the exact answer in your state.
What grade is a 15-year-old in the US?
Usually 9th or 10th grade. A student who is already 15 on the cutoff date is typically in 10th grade, and one who turns 15 after the cutoff is typically in 9th. In a September 1 state, 10th grade in 2026-27 covers birthdays from September 2, 2010 through September 1, 2011. A 14-year-old is usually in 8th or 9th grade by the same rule.
What grade am I in by birth year?
A birth year alone gives two possible grades, because the kindergarten cutoff usually falls in late summer or fall. In a September 1 state, students born January 1 to September 1, 2014 are expected in 7th grade in 2026-27, while those born September 2 to December 31, 2014 are expected in 6th grade. The birth-date table on this page lists every grade from kindergarten to 12th, and the calculator applies your own state’s cutoff.
My child was born just after the cutoff. Can they start early?
That depends on early-entry rules, which vary by state and district. The what grade am I in calculator shows the grade by age only, using the statewide default cutoff. A child born one day after the cutoff is expected to start kindergarten the following fall. Ask your district’s enrollment office about early-entry rules and any deadlines for requesting an exception.
Why does the tool show two grades for New York or Pennsylvania?
Massachusetts, New Hampshire, New York and Pennsylvania leave the kindergarten entry age to local districts, so there is no single statewide date. The tool shows the range you get from the earliest to the latest statewide cutoffs used elsewhere and explains why. Your district’s date gives the exact answer.
How does Ohio’s cutoff work?
Ohio’s rule, as summarized by the Education Commission of the States, is age 5 by the first day of school, and districts set their own first day. Enter your district’s first day in the optional box for an exact grade. Without it, a birthday in late summer can land on either side of the line, because the first day of school differs from district to district, so check the district calendar before relying on the result.
Does the tool account for kids who were held back or skipped a grade?
No. The what grade am I in tool gives the expected grade by age under the state’s rule. Redshirting (starting kindergarten a year late), retention and grade skipping all shift the real grade by a year, so a student who repeated 1st grade will be one grade below the result. Adjust the answer by one year for each of those events.

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.

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