GCSE Grading System UK — Grades 1 to 9 Explained
Since 2017, GCSEs in England have been graded on a 9 to 1 scale, where 9 is the highest and 1 is the lowest. This replaced the old A*–G letter grades to provide more differentiation at the top end.
GCSE Grading System Explained Simply
The 9–1 grading system was introduced by Ofqual to address concerns that the old A*–G system did not distinguish enough between top performers. Under the new system, there are effectively more grades at the top, allowing universities and employers to better differentiate between high-achieving students.
| New Grade (9–1) | Old Grade (A*–G) | Description |
|---|---|---|
| 9 | Above A* | Exceptional — top 2–3% nationally |
| 8 | A*–A | Outstanding performance |
| 7 | A | Excellent |
| 6 | B | Very good |
| 5 | Strong B–C | Strong pass |
| 4 | C | Standard pass |
| 3 | D–E | Below pass |
| 2 | E–F | Below pass |
| 1 | F–G | Lowest achievable grade |
Grade 4 = standard pass (old C). Grade 5 = strong pass. Grade 7 = old A. Grade 9 = higher than old A*.
What Is a Strong Pass in GCSE?
The government defines grade 5 as a "strong pass" and grade 4 as a "standard pass." For school performance tables, the government uses grade 5 as the benchmark. However, for individual students, grade 4 is accepted by the vast majority of colleges, sixth forms, and employers as a pass.
Foundation Tier vs Higher Tier
Many GCSE subjects offer two tiers of entry:
| Tier | Available Grades | Who Should Sit It |
|---|---|---|
| Foundation | Grades 1–5 | Students predicted grade 5 or below |
| Higher | Grades 4–9 | Students predicted grade 6 or above |
If you sit Foundation tier, the highest grade you can achieve is a 5. If you sit Higher tier but perform below the grade 4 boundary, you may be awarded a grade 3 as a "safety net." Your school will advise which tier is most appropriate for you.
GCSE vs A Level Differences
GCSEs are taken at age 15–16 (Year 11) and cover a broad range of subjects. A Levels are taken at age 17–18 (Years 12–13) and involve deeper study of 3–4 chosen subjects. A Levels are the primary qualification used for university entry. GCSE grades determine which A Level subjects and institutions you can access — most sixth forms require at least grade 6 in subjects you wish to study at A Level.
For more about how GCSEs affect your future options, see our guide on what to do after GCSE results.
Frequently Asked Questions
Grade 4 is a standard pass, equivalent to the old grade C. Grade 5 is a strong pass. Most colleges and employers accept grade 4 as the minimum pass.
Foundation tier covers grades 1–5 (you cannot score above a 5). Higher tier covers grades 4–9. Your school decides which tier you sit based on your predicted grade.
GCSEs replaced O Levels in 1988. The content and assessment style are different but comparable in academic standard. The 9–1 grading was introduced to provide more differentiation at the top end.
There is no fixed percentage for grade 9. It depends on the grade boundary, which changes every year. Typically, grade 9 is awarded to approximately the top 2–3% of candidates.