Your grade journey
Edexcel A level Chemistrygrade boundaries
Explore official boundaries. See where your marks take you.
9CH03 official seriesMaximum mark 300
Exam series
Flight log / June 2026
Grade boundaries
OfficialAll papers · 01 / 02 / 03 · Out of 300
Grade A*
246
marks / 300
Grade A
212
marks / 300
Grade C
140
marks / 300
Grade E
68
marks / 300
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| A* | 246 | 246–300 | 82% |
| A | 212 | 212–245 | 71% |
| B | 176 | 176–211 | 59% |
| C | 140 | 140–175 | 47% |
| D | 104 | 104–139 | 35% |
| E | 68 | 68–103 | 23% |
| U | Below 68 | ||
These boundaries apply to this exam series and route. Paper maximums ↗
How these boundaries have changed
All papers, every official series. Boundaries move each year with how hard the papers were.
| Series | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|
| June 2026 | 246 | 212+5 | 176+6 | 140+7 | 104+8 | 68+8 |
| June 2025 | 246-6 | 207-9 | 170-7 | 133-5 | 96-3 | 60-1 |
| June 2024 | 252 | 216 | 177 | 138 | 99 | 61 |
+ higher than the same series a year earlier (harder to reach) · − lower (easier to reach).
Grade calculator
June 2026 · All papers
Enter your mark for each paper to see your grade.
212 marks needed for Grade A.
Frequently asked questions
What did you need for a grade E in Chemistry in June 2026?
In June 2026, grade E in Pearson Edexcel A level Chemistry (9CH0) needed 68 out of 300 on all papers.
What was the boundary for a grade A* in June 2026?
246 out of 300 on all papers — the top grade for A level Chemistry in June 2026.
How is my grade worked out?
Your marks from each paper are added up (scaled by a weighting factor where papers count differently) to give your subject mark, which is then compared with the boundaries. Your grade comes from the total — not from each paper separately.
When will the next boundaries be published?
Pearson Edexcel publishes grade boundaries on results day for each series. Until then, any figures shown for a future series are Starley estimates, clearly labelled, based on recent years.