AQA GCSE Chemistry grade boundaries
In June 2026, grade 9 took 155 of 200 raw marks (77.5%) on Chemistry Tier H. Every published series below, as raw marks or percentages — from AQA's official documents, sources included.
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What do I need for a 9?
Grade 9 is 155 out of 200, 77.5 percent, for June 2026.
Chemistry Tier H
Grade 9 = 155/200 (77.5%)
June 2026
Recent range across selected series: 149–155 marks (74.5–77.5%)
Boundaries move every series — aim a comfortable margin above the recent range, not at the boundary itself.
What grade is my mark?
Boundaries are set fresh every series and move year to year — treat these as a guide to the difficulty band, not a promise.
| Grade | June 2026latest | June 2025 | June 2024 |
|---|---|---|---|
| 9 | 155 | 150 | 149 |
| 8 | 137 | 132 | 130 |
| 7 | 120 | 115 | 112 |
| 6 | 94 | 90 | 90 |
| 5 | 68 | 66 | 68 |
| 4 | 43 | 42 | 46 |
| 3 | 30 | 30 | 35 |
| Max mark | 200 | 200 | 200 |
Grade 9 boundary over time — Chemistry Tier H
Quick answers
What mark is a grade 9 in AQA GCSE Chemistry on Chemistry Tier H?
In June 2026, grade 9 took 155 of 200 raw marks (77.5%) on Chemistry Tier H. It moves every series — see the table for the recent range.
Why do grade boundaries change every year?
Boundaries are set after marking so that a grade reflects the same standard even when the paper is harder or easier. A hard paper gets lower boundaries; an easy one, higher. That's why revising to 'the boundary' is a trap — aim above the recent range.
Where does this data come from?
Every row is taken from AQA's official grade-boundary publications — the exact source document and retrieval date are listed under the table. Series the board hasn't published simply aren't shown.
Sources — official board publications
- June 2026aqa.org.uk/files/QHo9jKqPL0pZ5xdB09S2Ww/a8c1634eeced8e0ef79b2d179398dfd2414ee291.pdfretrieved 2026-09-01
- June 2025aqa.org.uk/…/ae1e25e87bcd136c90d5db0577ff92ffce552c7b.pdfretrieved 2026-07-08
- June 2024aqa.org.uk/…/fc6e25026a0ec5cc438923039fd8b0bae581c285.pdfretrieved 2026-07-08
- November 2021filestore.aqa.org.uk/over/stat_pdf/AQA-GCSE-2-GDE-BDY-NOV-2021.PDFretrieved 2026-09-07
- November 2020filestore.aqa.org.uk/over/stat_pdf/AQA-GCSE-2-GDE-BDY-NOV-2020.PDFretrieved 2026-09-07
Close the gap
A few marks off the grade you need?
The gap between grades varies widely by course and series — check the table above for yours. I teach the marks that make the difference. Free intro call, then a free first lesson.