Your grade journey
Cambridge IGCSE First Language Thaigrade boundaries
Explore official boundaries. See where your marks take you.
05183 official seriesMaximum mark 100
Exam series
Flight log / June 2026
Grade boundaries
OfficialPapers 01, 02 · Out of 100
Grade A*
76
marks / 100
Grade A
67
marks / 100
Grade C
49
marks / 100
Grade E
30
marks / 100
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| A* | 76 | 76–100 | 76% |
| A | 67 | 67–75 | 67% |
| B | 58 | 58–66 | 58% |
| C | 49 | 49–57 | 49% |
| D | 39 | 39–48 | 39% |
| E | 30 | 30–38 | 30% |
| F | 20 | 20–29 | 20% |
| G | 10 | 10–19 | 10% |
| U | Below 10 | ||
These boundaries apply to this exam series and route.
How these boundaries have changed
Papers 01, 02, every official series. Boundaries move each year with how hard the papers were.
| Series | A* | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|
| June 2026 | 76-2 | 67-1 | 58 | 49 | 39 | 30 | 20 | 10 |
| June 2025 | 78-1 | 68-2 | 58-3 | 49-3 | 39-3 | 30-2 | 20-2 | 10-2 |
| June 2024 | 79 | 70 | 61 | 52 | 42 | 32 | 22 | 12 |
+ higher than the same series a year earlier (harder to reach) · − lower (easier to reach).
Grade calculator
June 2026 · Papers 01, 02
Enter your mark for each paper to see your grade.
67 marks needed for Grade A.
Frequently asked questions
What did you need for a grade E in First Language Thai in June 2026?
In June 2026, grade E in Cambridge IGCSE First Language Thai (0518) needed 30 out of 100 on papers 01, 02.
What was the boundary for a grade A* in June 2026?
76 out of 100 on papers 01, 02 — the top grade for IGCSE First Language Thai 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?
Cambridge 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.