OCR A level Biology A grade boundaries
Specification H420
June 2026 · A-level
270 marks in totalOfficial exam-board qualification boundaries. Use marks from this specification, entry option and exam series. A single paper is not a qualification grade.
Qualification boundaries
| Grade | Marks | Percentage |
|---|---|---|
| A* | 204 | 75.6% |
| A | 176 | 65.2% |
| B | 150 | 55.6% |
| C | 124 | 45.9% |
| D | 98 | 36.3% |
| E | 72 | 26.7% |
Enter your marks
Leave unfinished papers blank. Enter zero only for a marked score of zero. Marks are processed for this calculation and are not saved by the application.
Notional component boundaries · June 2026
Official notional component boundaries, checked against the published table. Use these to compare a paper score; your qualification grade uses the total.
H420/01 · 100 marks
| Grade | Raw marks | Percentage |
|---|---|---|
| A* | 82 | 82% |
| A | 71 | 71% |
| B | 61 | 61% |
| C | 50 | 50% |
| D | 39 | 39% |
| E | 28 | 28% |
H420/02 · 100 marks
| Grade | Raw marks | Percentage |
|---|---|---|
| A* | 71 | 71% |
| A | 61 | 61% |
| B | 51 | 51% |
| C | 42 | 42% |
| D | 33 | 33% |
| E | 24 | 24% |
H420/03 · 70 marks
| Grade | Raw marks | Percentage |
|---|---|---|
| A* | 51 | 72.9% |
| A | 44 | 62.9% |
| B | 38 | 54.3% |
| C | 32 | 45.7% |
| D | 26 | 37.1% |
| E | 20 | 28.6% |
Other recorded years
Each row uses its own recorded maximum. Comparisons do not predict the next series.