IGCSE Human Biology (4HB1)
Edexcel International GCSE (Pearson). Estimate your grade, check grade boundaries by exam session, and see the percentage needed for each grade.
Human Biology grade calculator
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Estimated grade
Show grade thresholds for this option
| Grade | Min mark | Min % |
|---|
Pick the tier and paper variant you sat. Boundaries differ between Core and Extended and between paper variants (exam zones), so choose the option that matches your papers. Spot a wrong number? Report it.
Percentage needed for each grade
June 2025 · Overall (9–1) · max 180.
| Grade | Min mark | Min % |
|---|---|---|
| 9 | 152 | 85% |
| 8 | 139 | 78% |
| 7 | 127 | 71% |
| 6 | 113 | 63% |
| 5 | 99 | 56% |
| 4 | 85 | 48% |
| 3 | 66 | 37% |
| 2 | 47 | 27% |
| 1 | 28 | 16% |
Human Biology grade boundaries by session
- Human Biology grade boundaries — June 2025 · 2 options
- Human Biology grade boundaries — June 2024 · 2 options