What grade is a 13 year old in?

Age 13 · 2026–27

7th grade or 8th grade

A 13-year-old is usually in 7th grade or 8th grade. Which one depends on their birthday and your state's kindergarten cutoff (September 1 in most states).

For 2026–27: 8th grade if born Sep 2, 2012 – Sep 1, 2013.

7th grade if born Sep 2, 2013 – Sep 1, 2014.

Grade by age is a guide, not a rule. Some families wait a year to start kindergarten (often called redshirting), some schools allow early entry, and homeschoolers can place a child by readiness in each subject.

7th grade curriculum Check scholarships

Age by grade for 2026–27 (September 1 cutoff)
Grade	Typical age	Birthdates
Preschool (3s)	3–4	Sep 2, 2022 – Sep 1, 2023
Pre-K (4s)	4–5	Sep 2, 2021 – Sep 1, 2022
Kindergarten	5–6	Sep 2, 2020 – Sep 1, 2021
1st grade	6–7	Sep 2, 2019 – Sep 1, 2020
2nd grade	7–8	Sep 2, 2018 – Sep 1, 2019
3rd grade	8–9	Sep 2, 2017 – Sep 1, 2018
4th grade	9–10	Sep 2, 2016 – Sep 1, 2017
5th grade	10–11	Sep 2, 2015 – Sep 1, 2016
6th grade	11–12	Sep 2, 2014 – Sep 1, 2015
7th grade	12–13	Sep 2, 2013 – Sep 1, 2014
8th grade	13–14	Sep 2, 2012 – Sep 1, 2013
9th grade	14–15	Sep 2, 2011 – Sep 1, 2012
10th grade	15–16	Sep 2, 2010 – Sep 1, 2011
11th grade	16–17	Sep 2, 2009 – Sep 1, 2010
12th grade	17–18	Sep 2, 2008 – Sep 1, 2009

Cutoff source: NCES State Education Reforms, Table 1.3: kindergarten entrance requirements by state. Checked October 2026.

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A 13-year-old is usually in 8th grade, or in 7th grade if they turned 13 after the fall cutoff.

In states with a September 1 cutoff, 8th graders for 2026–27 were born between September 2, 2012, and September 1, 2013. Eighth grade is usually the last year of middle school, and it sets up high school: many students take Algebra I, and some take a high school course that may count for credit. Homeschool families can count high school-level work done in 8th grade on a transcript in many cases, but check what your state and any future college expect.

Use the calculator above for an exact answer: enter your child's birthdate and choose your state, and it applies that state's kindergarten cutoff to the 2026–27 school year. Grade by age is a guide, not a rule. Homeschool families can place a child by readiness, even at different levels in different subjects.

Tips for using it

If your 13-year-old takes Algebra I or a high school science course, keep records now; you may be able to list it on the high school transcript.
Eighth grade is a good year to try one outside class, such as an online course or co-op, to practice deadlines.

Variations

All what grade is my child

Questions

Is a 13-year-old in 7th or 8th grade?

Either. A child who turned 13 by the fall cutoff is usually in 8th grade; one who turns 13 later in the school year is usually in 7th.

Can 8th grade classes count for high school credit?

Often, if the course is truly high school level, like Algebra I or a foreign language. Public schools set their own rules. Homeschool parents decide for their own transcript, though colleges may ask how the course was taught.