Somewhere along the way, English GCSEs swapped letters for numbers, and now half the internet still talks in A*s while your results slip will say things like "grade 6". It's not you. The two systems genuinely overlap, and nobody explained the changeover properly. So let's fix that. This is the 9–1 grading system in plain English, with no scary framing and no maths you didn't ask for.
So what actually changed?
GCSEs in England moved from the old A*–G letters to a numbered scale of 9 down to 1. The switch happened subject by subject between 2017 and 2019, so it's been fully in place for years now: English and maths went first, everything else followed. The point of the change wasn't to make anything harder. It was to spread out the top grades: under the old system a huge number of students landed on an A or A*, and there was no way to tell them apart. The numbers give more room at the top, which is why there are three "top" grades (9, 8, 7) where there used to be two (A*, A).
One thing worth knowing if you're not in England: the 9–1 scale is used for GCSEs in England and for Eduqas GCSEs. In Wales, WJEC GCSEs still use A*–G letters, and in Northern Ireland CCEA GCSEs use letters too (with a C* slotted in). Same qualification, different scoreboard. If you're revising a Welsh or Northern Irish specification, check which one your board uses. GCSE Boss is built around your actual board's spec, so the app already knows.
What each number means
Here's the full scale, top to bottom: 9, 8, 7, 6, 5, 4, 3, 2, 1, and then U, which means unclassified (no grade awarded). Nine is the highest grade you can get. It sits above the old A*, so it's genuinely rare and reserved for the very top of the cohort. One is the lowest numbered grade, roughly where the old G used to be. Everything else fills in between, and each step up is a meaningful jump: a 6 is clearly stronger than a 5, and so on.
What counts as a "pass"?
This is the bit everyone actually wants: grade 4 is a "standard pass" and grade 5 is a "strong pass". When schools, colleges and sixth forms talk about needing a "pass" in English and maths, a 4 is usually the line they mean. Some courses and colleges ask for a 5, and a few competitive ones ask higher, so a pass isn't a single fixed bar, it depends on where you're heading next. If you're aiming for a specific college or sixth form, the safest move is to check their entry requirements rather than assume. We wrote a separate guide on what grades you need for sixth form if that's the question on your mind.
How the old letters line up with the numbers
If a parent or teacher keeps translating everything into letters, here's the rough alignment the exam regulator uses. The bottom of grade 7 lines up with the bottom of the old grade A. The bottom of grade 4 lines up with the bottom of the old grade C. And the bottom of grade 1 lines up with the bottom of the old grade G. So as a quick mental map: 7 is around an A, 4 is around a C, 1 is around a G, and 9 is better than an A*. It's not a perfectly exact swap grade-for-grade (the whole reason for the change was to add detail the letters didn't have), but it's close enough to translate a conversation.
Why grades don't get "easier" or "harder" each year
A myth worth killing: the idea that some years are "easy years" and some are "hard years". The regulator uses an approach called comparable outcomes, which keeps standards steady from one year to the next. In practice that means the standard for a given grade in 2026 is held in line with previous summers. It's not meant to be easier or harder to earn a 6 this year than last, and the same grade means broadly the same thing whichever exam board you sat. Grade boundaries (the exact marks needed for each grade) do move a little each year to account for how tricky a particular paper was, and those boundaries are published at 8am on results day by each board. That's normal. It's the mechanism that keeps things fair, not evidence of a stitch-up.
What this means for you right now
GCSE results land on Thursday 20 August 2026. When you open that slip, you'll see a number next to each subject. Now you know exactly what each one means. A 4 or above in English and maths clears the standard-pass bar most places ask for; a 5 or above is the strong pass some courses want; and anything higher is money in the bank for competitive next steps. If a grade is lower than you hoped, that isn't the end of the road: reviews of marking, November resits and college conversations all exist for exactly that, and none of it has to be sorted on the day. We've got a calm, no-panic guide on what to do if you didn't get the grades you needed if you want it in your back pocket.
Between now and results day, the most useful thing you can do with the grading system is stop thinking about it. The grades are already set; results day is just the reveal. Understanding the 9–1 scale takes five minutes, and that's genuinely all it needs to take. The heavy lifting is already done.
One bit of housekeeping: your grades are set and awarded by the exam boards, and simply passed on by your school on results day. GCSE Boss isn't affiliated with or endorsed by any exam board. We map their published specifications so you can revise exactly what's in your syllabus, board by board, spec point by spec point. Whether your slip says 9–1 or A*–G, the app already speaks your board's language.