What percentage is each grade in IGCSE Computer Science?
Grade boundaries change every session, so percentages aren't fixed. Based on the Cambridge June 2026 boundaries for extended · papers 11, 21, here's the percentage needed for each grade in Computer Science (0478).
| Grade | Min mark | Min percentage |
|---|---|---|
| A* | 117/150 | 78% |
| A | 93/150 | 62% |
| B | 69/150 | 46% |
| C | 46/150 | 31% |
| D | 39/150 | 26% |
| E | 32/150 | 22% |
| F | 25/150 | 17% |
| G | 18/150 | 12% |
Extended · Papers 11, 21 · maximum mark 150 · June 2026.
FAQ
What percentage is a A* in IGCSE Computer Science?
In June 2026 (Extended · Papers 11, 21), a A* needed about 78% (117/150). Boundaries shift slightly each session.
What percentage is a pass (C) in IGCSE Computer Science?
A grade C needed roughly 31% in June 2026. Grade 4 / C is generally treated as a standard pass.
Are these IGCSE Computer Science percentages official?
They are derived from the official Cambridge grade threshold tables. Boundaries are set per session, so use these as a guide and confirm with your exam board.