Your grade journey
Edexcel GCSE Computer Sciencegrade boundaries
Explore official boundaries. See where your marks take you.
1CP23 official seriesMaximum mark 150
Exam series
Flight log / June 2026
Grade boundaries
OfficialAll papers · 01 / 02 · Out of 150
Grade 9
118
marks / 150
Grade 7
88
marks / 150
Grade 5
60
marks / 150
Grade 4
46
marks / 150
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| 9 | 118 | 118–150 | 79% |
| 8 | 103 | 103–117 | 69% |
| 7 | 88 | 88–102 | 59% |
| 6 | 74 | 74–87 | 49% |
| 5 | 60 | 60–73 | 40% |
| 4 | 46 | 46–59 | 31% |
| 3 | 33 | 33–45 | 22% |
| 2 | 20 | 20–32 | 13% |
| 1 | 8 | 8–19 | 5.3% |
| U | Below 8 | ||
These boundaries apply to this exam series and route. Paper maximums ↗
How these boundaries have changed
All papers, every official series. Boundaries move each year with how hard the papers were.
| Series | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|
| June 2026 | 118-6 | 103-6 | 88-6 | 74-5 | 60-4 | 46-3 | 33-3 | 20-3 | 8-2 |
| June 2025 | 124+5 | 109+4 | 94+3 | 79+3 | 64+3 | 49+2 | 36+2 | 23+2 | 10+2 |
| June 2024 | 119 | 105 | 91 | 76 | 61 | 47 | 34 | 21 | 8 |
+ higher than the same series a year earlier (harder to reach) · − lower (easier to reach).
Grade calculator
June 2026 · All papers
Enter your mark for each paper to see your grade.
88 marks needed for Grade 7.
Frequently asked questions
What did you need for a grade 4 in Computer Science in June 2026?
In June 2026, grade 4 in Pearson Edexcel GCSE Computer Science (1CP2) needed 46 out of 150 on all papers.
What was the boundary for a grade 9 in June 2026?
118 out of 150 on all papers — the top grade for GCSE Computer Science in June 2026.
How is my grade worked out?
Your marks from each paper are added up (scaled by a weighting factor where papers count differently) to give your subject mark, which is then compared with the boundaries. Your grade comes from the total — not from each paper separately.
When will the next boundaries be published?
Pearson Edexcel publishes grade boundaries on results day for each series. Until then, any figures shown for a future series are Starley estimates, clearly labelled, based on recent years.