Your grade journey
Edexcel A level Biology A (Salters Nuffield)grade boundaries
Explore official boundaries. See where your marks take you.
9BN03 official seriesMaximum mark 300
Exam series
Flight log / June 2026
Grade boundaries
OfficialAll papers · 01 / 02 / 03 · Out of 300
Grade A*
220
marks / 300
Grade A
196
marks / 300
Grade C
144
marks / 300
Grade E
94
marks / 300
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| A* | 220 | 220–300 | 73% |
| A | 196 | 196–219 | 65% |
| B | 170 | 170–195 | 57% |
| C | 144 | 144–169 | 48% |
| D | 119 | 119–143 | 40% |
| E | 94 | 94–118 | 31% |
| U | Below 94 | ||
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 | 220-5 | 196-4 | 170-3 | 144-2 | 119 | 94+2 |
| June 2025 | 225+26 | 200+29 | 173+29 | 146+29 | 119+28 | 92+27 |
| June 2024 | 199 | 171 | 144 | 117 | 91 | 65 |
+ 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.
196 marks needed for Grade A.
Frequently asked questions
What did you need for a grade E in Biology A (Salters Nuffield) in June 2026?
In June 2026, grade E in Pearson Edexcel A level Biology A (Salters Nuffield) (9BN0) needed 94 out of 300 on all papers.
What was the boundary for a grade A* in June 2026?
220 out of 300 on all papers — the top grade for A level Biology A (Salters Nuffield) 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.