Since 2017, GCSEs in England have used a 9-1 numeric scale instead of the old A*-G letters. Here's a complete guide: the full translation, Foundation vs Higher tier, and the one distinction most explainers miss.
GCSE stands for General Certificate of Secondary Education. It's the main qualification taken by students in England at the end of Year 11, typically around age 16, marking the end of what's called Key Stage 4. Most students sit between eight and ten subjects, with Maths, English and Science treated as core, compulsory subjects in the vast majority of schools, alongside a range of optional subjects.
English Language, English Literature and Maths switched from the old A*-G letter scale to the new 9-1 numeric scale in 2017. Every other GCSE subject followed over the next few years, so by 2020 all GCSEs in England used the 9-1 scale. The change was introduced to make it easier to distinguish between the very top performers, since the old A* grade covered a wide range of ability with no further distinction at the top end.
| New grade | Old grade (approx.) |
|---|---|
| 9 | Above A* |
| 8 | High A*/A |
| 7 | A |
| 6 | High B |
| 5 | Strong pass (high C/low B) |
| 4 | Standard pass (C) |
| 3 | D |
| 2 | E |
| 1 | F/G |
| U | Ungraded |
It's worth knowing this mapping is approximate, not exact. The numeric and letter systems don't align perfectly grade-for-grade, which is exactly why grade 5 gets its own explanation below.
A grade 4 and a grade 5 are both commonly described as a "pass," but they aren't treated the same in practice, and this is the single most important thing to understand about the current system.
Grade 4 is the government's standard pass, the minimum most institutions require and the figure used in most school performance tables. Grade 5 is the "strong pass," and it's typically the benchmark sixth forms and colleges are actually looking for when a student applies to continue a subject or move into further education. A grade 5 was deliberately set to sit above the old grade C boundary, specifically to raise the bar beyond what a straightforward pass used to mean.
That gap matters more than the simpler pass/fail framing suggests. Two students who both "passed" a subject, one with a 4 and one with a 5, can be in genuinely different positions when it comes to planning next steps.
Some GCSE subjects, most commonly Maths and the Sciences, are split into two tiers of exam paper: Foundation and Higher. Foundation tier covers grades 1 through 5. Higher tier covers grades 4 through 9. A school decides which tier a student sits, usually based on their working level throughout the course, since the two tiers contain genuinely different content and difficulty, not just an easier or harder version of the same paper.
This matters practically: a student capped at Foundation tier cannot achieve above a grade 5, however well they perform on the day. If a target grade of 6 or above matters for a subject, it's worth confirming directly with the school which tier a child is entered for, well before the exam itself.
If a subject is showing a 3 or 4, it's worth understanding exactly where that sits and what it means for progression, rather than treating any pass as equally secure. Many sixth forms and colleges set grade 5 as their real threshold for continuing a subject at A-level, even though grade 4 is technically a pass, so it's always worth confirming the specific requirement directly with the school.
If your child's results include a grade close to a tier or threshold boundary, it's worth asking the school directly what that means for their specific subject and next steps, general guidance doesn't always reflect what an individual school actually requires.
When did GCSEs switch from letters to numbers?
English Language, English Literature and Maths switched in 2017. All other subjects followed by 2020.
What is a good GCSE grade?
Grade 4 is a standard pass; grade 5 is a strong pass and the more meaningful benchmark for progression. Grades 7-9 are broadly equivalent to the old A and A* grades.
What is the difference between Foundation and Higher tier?
Foundation tier covers grades 1-5. Higher tier covers grades 4-9. The exam content and difficulty differ between the two, not just the grade ceiling.
Is a grade 5 the same as an old grade C?
Not exactly. It sits between the old B and C grades, deliberately set slightly above the old C boundary.
If you'd like help working out what a result means for your child's next steps, get in touch.