Chemistry grade boundaries
Every Edexcel 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.
3000246A*212A176B140C104D68E0
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 | U |
|---|---|---|---|---|---|---|---|---|---|
| Chemistry | 9CH0 | 300 | 24682 | 21271 | 17659 | 14047 | 10435 | 6823 | 00 |
June 2025
Open June 2025 with calculators →| Award | Code | Max | A* | A | B | C | D | E | U |
|---|---|---|---|---|---|---|---|---|---|
| Chemistry | 9CH0 | 300 | 24682 | 20769 | 17057 | 13344 | 9632 | 6020 | 00 |
June 2024
Open June 2024 with calculators →| Award | Code | Max | A* | A | B | C | D | E | U |
|---|---|---|---|---|---|---|---|---|---|
| Chemistry | 9CH0 | 300 | 25284 | 21672 | 17759 | 13846 | 9933 | 6120 | 00 |