Chemistry grade boundaries
Every AQA A-level Chemistry boundary set we hold —3 awards across 3 series. Marks are raw marks for the whole subject, and every table links to the document it came from.
Grade A boundary over time
Shown as a percentage of the maximum mark, because the maximum changes when a board reforms a specification and raw marks stop being comparable.
3000255A*220A181B142C104D66E0
Turn a mark into a grade
This is the total for the whole subject, not one paper. Working from paper marks? Use the paper calculator below.
of 300
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Enter a mark to place it on the scale.
June 2026Latest
Open June 2026 with calculators →| Award | Code | Max | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|---|
| Chemistry | 7405 | 300 | 25585 | 22073 | 18160 | 14247 | 10435 | 6622 |
June 2025
Open June 2025 with calculators →| Award | Code | Max | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|---|
| Chemistry | 7405 | 300 | 23980 | 19766 | 16254 | 12742 | 9331 | 5920 |
June 2024
Open June 2024 with calculators →| Award | Code | Max | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|---|
| Chemistry | 7405 | 300 | 23980 | 19866 | 16254 | 12642 | 9030 | 5518 |