IGCSE Chemistry (0620) grade boundaries — March 2026
Cambridge IGCSE (CAIE) (0620). The official grade thresholds for the March 2026 series — the minimum raw mark needed for each grade, by tier and paper combination. Pick the option matching the papers you sat.
Cambridge publishes these as grade threshold tables: "grade thresholds" and "grade boundaries" are two names for the same numbers.
March 2026 at a glance
- A A* in Chemistry required 171/200 (86%) on extended · papers 22, 42, 52.
- That A* threshold is 18 marks higher than November 2025 — slightly harder to achieve.
- Across paper variants, the A* boundary ranged from 171 to 172 marks — variant choice mattered this session.
- A grade C needed roughly 43% on extended · papers 22, 42, 52.
Core · Papers 12, 32, 52
| Grade | Min mark | Min % |
|---|---|---|
| C | 107 | 54% |
| D | 91 | 46% |
| E | 75 | 38% |
| F | 59 | 30% |
| G | 43 | 22% |
Maximum mark: 200.
Core · Papers 12, 32, 62
| Grade | Min mark | Min % |
|---|---|---|
| C | 111 | 56% |
| D | 94 | 47% |
| E | 78 | 39% |
| F | 62 | 31% |
| G | 46 | 23% |
Maximum mark: 200.
Extended · Papers 22, 42, 52
| Grade | Min mark | Min % |
|---|---|---|
| A* | 171 | 86% |
| A | 142 | 71% |
| B | 113 | 57% |
| C | 85 | 43% |
| D | 74 | 37% |
| E | 63 | 32% |
| F | 51 | 26% |
| G | 39 | 20% |
Maximum mark: 200.
Extended · Papers 22, 42, 62
| Grade | Min mark | Min % |
|---|---|---|
| A* | 172 | 86% |
| A | 145 | 73% |
| B | 117 | 59% |
| C | 89 | 45% |
| D | 77 | 39% |
| E | 66 | 33% |
| F | 54 | 27% |
| G | 42 | 21% |
Maximum mark: 200.
Calculate your Chemistry grade →
Figures sourced from the official Cambridge grade threshold tables. Always confirm with your exam board.