A-Level Marine Science (9693)
Cambridge International AS & A Level. Estimate your grade, check grade boundaries for every session since June 2022, and see the percentage needed for each grade.
Marine Science grade calculator
Show grade thresholds for this option
| Grade | Min mark | Min % |
|---|
Pick the paper combination you sat. A-Level boundaries differ between paper variants (exam zones) and between AS and full A Level options, so choose the option that matches your papers. Spot a wrong number? Report it.
Percentage needed for each grade
June 2026 · Papers 11, 21, 31, 41 · max 300.
| Grade | Min mark | Min % |
|---|---|---|
| A* | 230 | 77% |
| A | 200 | 67% |
| B | 170 | 57% |
| C | 143 | 48% |
| D | 116 | 39% |
| E | 89 | 30% |
Marine Science grade boundary trend, June 2022–June 2026
Minimum percentage for each grade, Papers 1, 2, 3 and 4. Where a session had several paper variants for this route, the middle one is shown.
A*CE
| Session | Papers | Max | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|---|
| June 2026 | Papers 11, 21, 31, 41 | 300 | 230 77% | 200 67% | 170 57% | 143 48% | 116 39% | 89 30% |
| November 2025 | Papers 12, 22, 32, 42 | 300 | 232 78% | 202 68% | 172 58% | 144 48% | 116 39% | 89 30% |
| June 2025 | Papers 12, 22, 32, 42 | 300 | 228 76% | 200 67% | 172 58% | 145 49% | 118 40% | 91 31% |
| November 2024 | Papers 12, 22, 32, 42 | 300 | 231 77% | 200 67% | 169 57% | 141 47% | 113 38% | 85 29% |
| June 2024 | Papers 12, 22, 32, 42 | 300 | 236 79% | 202 68% | 168 57% | 141 47% | 114 38% | 87 29% |
| November 2023 | Papers 12, 22, 32, 42 | 300 | 231 77% | 201 67% | 171 57% | 142 48% | 114 38% | 86 29% |
| June 2023 | Papers 12, 22, 32, 42 | 300 | 232 78% | 199 67% | 166 56% | 138 46% | 111 37% | 84 29% |
| November 2022 | Papers 12, 22, 32, 42 | 300 | 221 74% | 192 64% | 163 55% | 136 46% | 109 37% | 82 28% |
| June 2022 | Papers 12, 22, 32, 42 | 300 | 220 74% | 191 64% | 162 54% | 135 45% | 108 36% | 81 27% |
Across 9 sessions from June 2022 to June 2026, the A* boundary for Papers 1, 2, 3 and 4 has ranged from 74% (June 2022) to 79% (June 2024), averaging 77%. The E boundary has ranged from 27% to 31%. In June 2026 it was 77% for A* and 30% for E.
Marine Science grade boundaries by session
- Marine Science grade boundaries — June 2026 · 15 options · 14 papers
- Marine Science grade boundaries — November 2025 · 11 options · 12 papers
- Marine Science grade boundaries — June 2025 · 12 options · 12 papers
- Marine Science grade boundaries — November 2024 · 12 options · 12 papers
- Marine Science grade boundaries — June 2024 · 12 options · 12 papers
- Marine Science grade boundaries — November 2023 · 11 options · 12 papers
- Marine Science grade boundaries — June 2023 · 12 options · 12 papers
- Marine Science grade boundaries — November 2022 · 12 options · 12 papers
- Marine Science grade boundaries — June 2022 · 11 options · 12 papers
Frequently asked
- What is a typical A* boundary in Marine Science?
- Across 9 sessions from June 2022 to June 2026, the A* boundary for Papers 1, 2, 3 and 4 has ranged from 74% (June 2022) to 79% (June 2024), averaging 77%. The E boundary has ranged from 27% to 31%. In June 2026 it was 77% for A* and 30% for E.
- How is the Marine Science grade calculated?
- Cambridge converts each paper's raw mark to a weighted mark, adds them, and compares the total with the syllabus thresholds for your combination of papers. For Papers 11, 21, 31, 41 in June 2026 the maximum was 300; the calculator above does this arithmetic for you.
- Why do Marine Science grade boundaries change every session?
- Boundaries are set after marking so that a grade represents the same standard whether the paper was slightly harder or easier. A harder paper gets lower boundaries. March, June and November series are set independently, which is why the same grade can need different marks in the same year.