Your child’s school year, translated into the UK system

In short. A UK school “Year” is set by a child’s age on 1 September. Year 7 is ages 11–12, Year 9 is 13–14, Year 11 (GCSE year) is 15–16, and Year 13 (final A-level year) is 17–18. US Grade is roughly UK Year minus one, so a US 8th-grader (age 13–14) maps to UK Year 9 — the year most senior boarding schools take their main intake.

A mother in Lagos is looking at a UK school website at eleven at night. It says the main entry point is Year 9. Her daughter is in JSS 3. She has no idea whether those are the same thing, and the website assumes she was born knowing. This guide is the answer she needed.

How UK year groups work

UK year groups run by age, fixed to the school year that starts in September. There is only one rule underneath it: work out how old your child is on 1 September, and everything else follows. A child who is thirteen on that date is in Year 9 for the whole of that school year, whatever their local system calls them and whenever their birthday falls.

The full translation table

Find your child’s age on 1 September in the second column, and read across.

UK Year	Age on 1 Sept	US Grade	Stage	Key exams
Year 7	11–12	Grade 6	Start of senior school (11+ entry)	—
Year 8	12–13	Grade 7	—	—
Year 9	13–14	Grade 8	Main boarding entry (13+ / Common Entrance)	—
Year 10	14–15	Grade 9	GCSE courses begin	—
Year 11	15–16	Grade 10	Final GCSE year	GCSE
Year 12	16–17	Grade 11	Sixth form begins (16+ entry)	AS
Year 13	17–18	Grade 12	Final school year	A-level / IB

Two rules of thumb that do most of the work

First, US Grade is usually UK Year minus one. A 7th-grader is a Year 8 child; a 10th-grader is a Year 11 child. Second, there are three doors into a UK boarding school, and they are all named by year: 11+ into Year 7, 13+ into Year 9, and 16+ into Year 12 for sixth form. Most senior boarding schools fill their main intake at 13+, so Year 9 is the year to aim at if your child is around thirteen. If you are joining later, sixth form at 16 is the other well-worn entry point.

If your child is in a different system

Other systems line up against age, not against a grade number, so translate by age and ignore the local label. An IB or international school will state the child’s age group; a child turning 14 during the school year is a Year 9 child in the UK whatever the name on their current report says.

One wrinkle catches families out. If your school system uses a different cut-off month — and several do, from January to August — a child born in late summer can sit right on the border between two UK years. That single fact can change which entry exam a school asks for, and occasionally which year they offer. It is worth confirming with the admissions office rather than guessing, especially for a summer-born child.

Do not try to jump a year

The opinion worth stating plainly: do not try to “advance” a child a year to get ahead. UK schools place on age and readiness, not ambition, and a child who is young for a demanding boarding year is a child under quiet strain for the wrong reasons. Fit beats acceleration almost every time. The right year group is the one that matches your child’s age, because that is the peer group they will live alongside, not just learn beside.

Common questions

What UK year is my 13-year-old in? A child who is 13 on 1 September is in Year 9, the main boarding entry year.

What is Year 9 in US grades? Year 9 maps to US Grade 8 (age 13–14).

What year does UK sixth form start? Year 12, at age 16, is the first sixth-form year; Year 13 is the final year, ending with A-levels or the IB.

My child is summer-born — which year? Still go by age on 1 September, but confirm with admissions, as a different national cut-off can place a late-summer child on the border of two years.

One translated year group is a small thing. It is also the first moment a family from outside the UK stops feeling locked out of the system, and starts feeling able to choose inside it. Once you know your child’s year, the next question is which school suits them — and that is a question of fit, not just fees.