Pearson Edexcel GCSE Biology grade boundaries
Specification 1BI0
June 2026 qualification boundaries
Choose the tier or entry option printed on your exam entry. Each total applies to that option.
Foundation tierJune 2026 · 200 marks in total · 5: 132 · 4: 115 · 3: 84
| Grade | Marks | Percentage |
|---|---|---|
| 5 | 132 | 66.0% |
| 4 | 115 | 57.5% |
| 3 | 84 | 42.0% |
| 2 | 53 | 26.5% |
| 1 | 22 | 11.0% |
Official source for June 2026 ↗ · Use the Foundation tier calculator
Higher tierJune 2026 · 200 marks in total · 9: 170 · 8: 158 · 7: 147
| Grade | Marks | Percentage |
|---|---|---|
| 9 | 170 | 85.0% |
| 8 | 158 | 79.0% |
| 7 | 147 | 73.5% |
| 6 | 126 | 63.0% |
| 5 | 105 | 52.5% |
| 4 | 84 | 42.0% |
| 3 | 73 | 36.5% |
Official source for June 2026 ↗ · Use the Higher tier calculator
Choose your tier or entry option.
The boundaries and assessment structure depend on that choice. No tier has been selected for you.