IGCSE Computer Science (0478) grade boundaries — March 2026
Cambridge IGCSE (CAIE) (0478). 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 Computer Science required 111/150 (74%) on extended · papers 12, 22.
- That A* threshold is 7 marks higher than November 2025 — slightly harder to achieve.
- A grade C needed roughly 30% on extended · papers 12, 22.
Extended · Papers 12, 22
| Grade | Min mark | Min % |
|---|---|---|
| A* | 111 | 74% |
| A | 89 | 60% |
| B | 67 | 45% |
| C | 45 | 30% |
| D | 37 | 25% |
| E | 30 | 20% |
| F | 23 | 16% |
| G | 16 | 11% |
Maximum mark: 150.
Calculate your Computer Science grade →
Figures sourced from the official Cambridge grade threshold tables. Always confirm with your exam board.