CCEA GCSE Biology grade boundaries
CCEA GCSE Biology grade boundaries for 6 series, June 2019 to June 2026, for the qualification as a whole and for each paper. Each table shows the lowest mark that got each grade, copied from CCEA's own document, which is linked underneath.
June 2026 CCEA GCSE Biology grade boundaries
Newest
| Qualification | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| GCSE (uniform marks) | 400 | 35588.8% | 32080% | 29273% | 26867% | 24060% | 20050% | 16040% | 12030% | 8020% |
| Unit | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Unit 1 (Foundation)GBL1 | 75 | not available | not available | not available | 3952% | 3445.3% | 2938.7% | 2533.3% | 2128% | 1722.7% |
| Unit 1 (Higher)GBL1 | 75 | not available | 5674.7% | 4661.3% | 3648% | 2736% | 1824% | 1317.3% | not available | not available |
| Unit 2 (Foundation)GBL2 | 90 | not available | not available | not available | 4853.3% | 4145.6% | 3538.9% | 2932.2% | 2426.7% | 1921.1% |
| Unit 2 (Higher)GBL2 | 90 | not available | 7077.8% | 5965.6% | 4853.3% | 3842.2% | 2831.1% | 2325.6% | not available | not available |
| Unit 3 (Foundation)GBL3 | 100 | not available | not available | not available | 4646% | 3838% | 3131% | 2424% | 1818% | 1212% |
| Unit 3 (Higher)GBL3 | 100 | not available | 5959% | 4747% | 3636% | 2525% | 1414% | 88% | not available | not available |
- Unit boundaries are raw marks. Each unit mark is converted to a uniform mark, and the grade comes from the total uniform mark shown in the first table.
- A* is awarded only for the subject as a whole; CCEA sets its uniform mark boundary each series.
Source: CCEA grade boundaries, GCSE Biology June 2026 (opens ccea.org.uk in a new tab)
Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.
June 2025 CCEA GCSE Biology grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| GCSE (uniform marks) | 400 | 35588.8% | 32080% | 29273% | 26867% | 24060% | 20050% | 16040% | 12030% | 8020% |
| Unit | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Unit 1 (Foundation)GBL1 | 75 | not available | not available | not available | 4154.7% | 3648% | 3141.3% | 2736% | 2330.7% | 1925.3% |
| Unit 1 (Higher)GBL1 | 75 | not available | 5168% | 4256% | 3445.3% | 2634.7% | 1824% | 1418.7% | not available | not available |
| Unit 2 (Foundation)GBL2 | 90 | not available | not available | not available | 5055.6% | 4347.8% | 3741.1% | 3134.4% | 2628.9% | 2123.3% |
| Unit 2 (Higher)GBL2 | 90 | not available | 6875.6% | 5864.4% | 4853.3% | 3842.2% | 2831.1% | 2325.6% | not available | not available |
| Unit 3 (Foundation)GBL3 | 100 | not available | not available | not available | 4040% | 3232% | 2525% | 1919% | 1313% | 77% |
| Unit 3 (Higher)GBL3 | 100 | not available | 4949% | 3939% | 2929% | 2020% | 1111% | 66% | not available | not available |
- Unit boundaries are raw marks. Each unit mark is converted to a uniform mark, and the grade comes from the total uniform mark shown in the first table.
- A* is awarded only for the subject as a whole; CCEA sets its uniform mark boundary each series.
Source: CCEA grade boundaries, GCSE Biology June 2025 (opens ccea.org.uk in a new tab)
Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.
June 2024 CCEA GCSE Biology grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| GCSE (uniform marks) | 400 | 35588.8% | 32080% | 29273% | 26867% | 24060% | 20050% | 16040% | 12030% | 8020% |
| Unit | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Unit 1 (Foundation)GBL1 | 75 | not available | not available | not available | 4053.3% | 3546.7% | 3141.3% | 2736% | 2330.7% | 1925.3% |
| Unit 1 (Higher)GBL1 | 75 | not available | 5269.3% | 4357.3% | 3546.7% | 2736% | 1925.3% | 1520% | not available | not available |
| Unit 2 (Foundation)GBL2 | 90 | not available | not available | not available | 5460% | 4752.2% | 4145.6% | 3538.9% | 3033.3% | 2527.8% |
| Unit 2 (Higher)GBL2 | 90 | not available | 6471.1% | 5358.9% | 4347.8% | 3336.7% | 2325.6% | 1820% | not available | not available |
| Unit 3 (Foundation)GBL3 | 100 | not available | not available | not available | 4040% | 3232% | 2525% | 1919% | 1313% | 77% |
| Unit 3 (Higher)GBL3 | 100 | not available | 5151% | 4141% | 3131% | 2121% | 1111% | 66% | not available | not available |
- Unit boundaries are raw marks. Each unit mark is converted to a uniform mark, and the grade comes from the total uniform mark shown in the first table.
- A* is awarded only for the subject as a whole; CCEA sets its uniform mark boundary each series.
Source: CCEA grade boundaries, GCSE Biology June 2024 (opens ccea.org.uk in a new tab)
Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.
June 2023 CCEA GCSE Biology grade boundaries
| Qualification or route | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Standard grading (uniform marks) | 400 | 35388.3% | 32080% | 29273% | 26867% | 24060% | 20050% | 16040% | 12030% | 8020% |
| Alternative grading (uniform marks) | 300 | 26588.3% | 24080% | 21973% | 20167% | 18060% | 15050% | 12040% | 9030% | 6020% |
| Unit | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Unit 1 (Foundation)GBL1 | 75 | not available | not available | not available | 4458.7% | 3648% | 2938.7% | 2229.3% | 1621.3% | 1013.3% |
| Unit 1 (Higher)GBL1 | 75 | not available | 5370.7% | 4458.7% | 3648% | 2837.3% | 2026.7% | 1621.3% | not available | not available |
| Unit 2 (Foundation)GBL2 | 90 | not available | not available | not available | 5257.8% | 4448.9% | 3741.1% | 3134.4% | 2527.8% | 1921.1% |
| Unit 2 (Higher)GBL2 | 90 | not available | 6976.7% | 5864.4% | 4752.2% | 3640% | 2527.8% | 1921.1% | not available | not available |
| Unit 3 (Foundation)GBL3 | 100 | not available | not available | not available | 2727% | 2222% | 1818% | 1414% | 1010% | 66% |
| Unit 3 (Higher)GBL3 | 100 | not available | 5454% | 4242% | 3131% | 2020% | 99% | 33% | not available | not available |
- Unit boundaries are raw marks. Each unit mark is converted to a uniform mark, and the grade comes from the total uniform mark shown in the first table.
- A* is awarded only for the subject as a whole; CCEA sets its uniform mark boundary each series.
- Alternative grading applies only to candidates retaking after certificating in 2021/22; everyone else is graded on standard grading.
Source: CCEA grade boundaries, GCSE Biology June 2023 (opens ccea.org.uk in a new tab)
Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.
June 2022 CCEA GCSE Biology grade boundaries
| Qualification or route | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Standard grading (uniform marks) | 400 | 35689% | 32080% | 29273% | 26867% | 24060% | 20050% | 16040% | 12030% | 8020% |
| Alternative grading (uniform marks) | 300 | 26789% | 24080% | 21973% | 20167% | 18060% | 15050% | 12040% | 9030% | 6020% |
| Unit | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Unit 1 (Foundation)GBL1 | 75 | not available | not available | not available | 2128% | 1824% | 1520% | 1216% | 1013.3% | 810.7% |
| Unit 1 (Higher)GBL1 | 75 | not available | 5066.7% | 3648% | 2330.7% | 1013.3% | 22.7% | 11.3% | not available | not available |
| Unit 2 (Foundation)GBL2 | 90 | not available | not available | not available | 2527.8% | 2022.2% | 1617.8% | 1213.3% | 88.9% | 44.4% |
| Unit 2 (Higher)GBL2 | 90 | not available | 6370% | 4550% | 2730% | 1011.1% | 22.2% | 11.1% | not available | not available |
| Unit 3 (Foundation)GBL3 | 100 | not available | not available | not available | 2929% | 2525% | 2121% | 1818% | 1515% | 1212% |
| Unit 3 (Higher)GBL3 | 100 | not available | 4545% | 3636% | 2727% | 1919% | 1111% | 77% | not available | not available |
- Unit boundaries are raw marks. Each unit mark is converted to a uniform mark, and the grade comes from the total uniform mark shown in the first table.
- A* is awarded only for the subject as a whole; CCEA sets its uniform mark boundary each series.
- In 2022 candidates could leave out some units: alternative grading applies to those who took only the mandatory units, standard grading to everyone else.
Source: CCEA grade boundaries, GCSE Biology June 2022 (opens ccea.org.uk in a new tab)
Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.
June 2019 CCEA GCSE Biology grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| GCSE (uniform marks) | 400 | 35889.5% | 32080% | 29273% | 26867% | 24060% | 20050% | 16040% | 12030% | 8020% |
| Unit | Max mark | Grade: lowest mark, and % of max mark | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C* | Grade C | Grade D | Grade E | Grade F | Grade G | ||
| Cells, Living Processes and Biodiversity (Foundation)GBL1 | 75 | not available | not available | not available | 4458.7% | 3648% | 2938.7% | 2229.3% | 1621.3% | 1013.3% |
| Cells, Living Processes and Biodiversity (Higher)GBL1 | 75 | not available | 5066.7% | 4256% | 3445.3% | 2634.7% | 1824% | 1418.7% | not available | not available |
| Body Systems, Genetics, Microorganisms and Health (Foundation)GBL2 | 90 | not available | not available | not available | 4954.4% | 4145.6% | 3437.8% | 2730% | 2123.3% | 1516.7% |
| Body Systems, Genetics, Microorganisms and Health (Higher)GBL2 | 90 | not available | 6471.1% | 5460% | 4448.9% | 3437.8% | 2426.7% | 1921.1% | not available | not available |
| Practical Skills (Foundation)GBL3 | 100 | not available | not available | not available | 4848% | 3838% | 3030% | 2222% | 1515% | 88% |
| Practical Skills (Higher)GBL3 | 100 | not available | 5757% | 4747% | 3737% | 2727% | 1717% | 1212% | not available | not available |
- Unit boundaries are raw marks. Each unit mark is converted to a uniform mark, and the grade comes from the total uniform mark shown in the first table.
- A* is awarded only for the subject as a whole; CCEA sets its uniform mark boundary each series.
Source: CCEA grade boundaries, GCSE Biology June 2019 (opens ccea.org.uk in a new tab)
Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.
Common questions
What were the Biology grade boundaries in June 2026?
In June 2026, an A needed 320 out of 400 uniform marks and a C needed 240. The full table, with the boundaries for each paper, is at the top of this page.
Where do these CCEA GCSE Biology grade boundaries come from?
Every number is copied from CCEA's own published grade boundary document for that series, which is linked under each table. We lay them out by course so you don't have to search a document covering every subject, and nothing is changed or estimated.
Why do grade boundaries change every year?
Boundaries are set after each exam has been marked, so that a grade means the same standard even when one year's paper is harder than another's. A harder paper usually has lower boundaries. That is why an old paper is best marked against its own year's boundaries, which is what the tables here are for.
When are new Biology grade boundaries published?
CCEA publishes grade boundaries on results day: for summer exams that is mid August for A levels and a week later for GCSEs, and November and January series get theirs on their own results days. We add them here after that, usually well before the papers themselves are released.
More grade boundaries: every CCEA course or every board.
cookie is independent and is not affiliated with or endorsed by any exam board. Every paper here is a link to the board's own copy on its own website, and the papers belong to the boards that set them. If a link has stopped working, the board's own past paper page is linked on each course. The grade boundaries are copied from the boards’ own published documents, each linked under its table.