A grade boundary is the lowest total mark that earns a grade. Exam boards set them after the exams, once marking is nearly complete, and they change from year to year with how demanding the papers were (Ofqual). To use them with a past paper, add up your child's marks across all of that year's papers and compare the total with that year's row, which is out of the same maximum. Each year links to its papers.
June 2026, board by board
The marks needed for grade C and A in June 2026, as a share of each board's maximum. Each board writes its own papers and sets boundaries for them, so a lower boundary doesn't mean a board's exam is easier to pass.
- AQA 45%·67%
- EdexcelBiology B 44%·63%
- EdexcelSalters-Nuffield 48%·65%
- OCRBiology A 46%·65%
- OCRAdvancing Biology 50%·64%
- Eduqas 49%·68%
The same figures as a table
| Board | Out of | Grade C | Grade A |
|---|---|---|---|
| AQA | 260 | 11845% | 17467% |
| Pearson Edexcel, Biology B | 300 | 13144% | 18963% |
| Pearson Edexcel, Biology A (Salters-Nuffield) | 300 | 14448% | 19665% |
| OCR, Biology A | 270 | 12446% | 17665% |
| OCR, Biology B (Advancing Biology) | 270 | 13450% | 17364% |
| Eduqas | 300 | 14749% | 20468% |
AQA
AQA past papersSpecification 7402, Biology.
Grade C needed 118 out of 260 marks (45%) in June 2026; in the June series from 2017 to 2025 it ranged from 34% (2022) to 44% (2024).
June 2026 out of 260
- A*
- 199 77%
- A
- 174 67%
- B
- 146 56%
- C
- 118 45%
- D
- 90 35%
- E
- 63 24%
Grade C as a share of the maximum: June 2017 39%, June 2018 36%, June 2019 39%, June 2022 34%, June 2023 38%, June 2024 44%, June 2025 43%, June 2026 45%. Grade A as a share of the maximum: June 2017 57%, June 2018 53%, June 2019 57%, June 2022 55%, June 2023 59%, June 2024 63%, June 2025 63%, June 2026 67%.
Every mark, every series
| Series | Out of | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|
| June 2026 | 260 | 19977% | 17467% | 14656% | 11845% | 9035% | 6324% |
| June 2025 | 260 | 19274% | 16563% | 13953% | 11343% | 8834% | 6324% |
| June 2024 | 260 | 19274% | 16563% | 14054% | 11544% | 9135% | 6726% |
| June 2023 | 260 | 18069% | 15359% | 12548% | 9838% | 7127% | 4417% |
| June 2022 | 260 | 17367% | 14255% | 11544% | 8934% | 6324% | 3714% |
| November 2021 | 260 | 16865% | 13652% | 11343% | 9135% | 6927% | 4718% |
| November 2020 | 260 | 17065% | 13853% | 11444% | 9035% | 6726% | 4417% |
| June 2019 | 260 | 17868% | 14957% | 12548% | 10139% | 7730% | 5320% |
| June 2018 | 260 | 16664% | 13853% | 11645% | 9436% | 7228% | 5019% |
| June 2017 | 260 | 17467% | 14757% | 12448% | 10139% | 7830% | 5622% |
Raw marks for the whole qualification, with the share of the maximum.The chart shows June series only; November and January sittings, mostly resits, are in the table.No exams were sat in 2020 or 2021, when grades were assessed by teachers, so those years are blank. From AQA's A level grade boundary documents: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, November 2020, June 2019, June 2018, June 2017.
Pearson Edexcel
Edexcel past papersBiology B (9BI0)
Grade C needed 131 out of 300 marks (44%) in June 2026; in the June series from 2017 to 2025 it ranged from 32% (2022) to 44% (2025).
June 2026 out of 300
- A*
- 218 73%
- A
- 189 63%
- B
- 160 53%
- C
- 131 44%
- D
- 102 34%
- E
- 73 24%
Grade C as a share of the maximum: June 2017 36%, June 2018 38%, June 2019 38%, June 2022 32%, June 2023 40%, June 2024 40%, June 2025 44%, June 2026 44%. Grade A as a share of the maximum: June 2017 52%, June 2018 56%, June 2019 56%, June 2022 49%, June 2023 59%, June 2024 57%, June 2025 63%, June 2026 63%.
Every mark, every series
| Series | Out of | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|
| June 2026 | 300 | 21873% | 18963% | 16053% | 13144% | 10234% | 7324% |
| June 2025 | 300 | 21772% | 18863% | 16053% | 13244% | 10535% | 7826% |
| June 2024 | 300 | 20568% | 17057% | 14448% | 11940% | 9431% | 6923% |
| June 2023 | 300 | 21371% | 17759% | 14849% | 11940% | 9130% | 6321% |
| June 2022 | 300 | 18461% | 14749% | 12140% | 9532% | 6923% | 4314% |
| November 2021 | 300 | 17659% | 14247% | 11639% | 9130% | 6622% | 4114% |
| November 2020 | 300 | 18762% | 15351% | 12542% | 9833% | 7124% | 4415% |
| June 2019 | 300 | 19966% | 16756% | 14047% | 11438% | 8829% | 6221% |
| June 2018 | 300 | 19766% | 16756% | 14147% | 11538% | 8930% | 6421% |
| June 2017 | 300 | 18963% | 15752% | 13344% | 10936% | 8528% | 6221% |
Raw marks for the whole qualification, with the share of the maximum.The chart shows June series only; November and January sittings, mostly resits, are in the table.No exams were sat in 2020 or 2021, when grades were assessed by teachers, so those years are blank. From Pearson Edexcel's A level grade boundary documents: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, November 2020, June 2019, June 2018, June 2017.
Biology A (Salters-Nuffield) (9BN0)
Grade C needed 144 out of 300 marks (48%) in June 2026; in the June series from 2017 to 2025 it ranged from 34% (2022) to 49% (2025).
June 2026 out of 300
- A*
- 220 73%
- A
- 196 65%
- B
- 170 57%
- C
- 144 48%
- D
- 119 40%
- E
- 94 31%
Grade C as a share of the maximum: June 2017 42%, June 2018 40%, June 2019 43%, June 2022 34%, June 2023 44%, June 2024 39%, June 2025 49%, June 2026 48%. Grade A as a share of the maximum: June 2017 58%, June 2018 57%, June 2019 58%, June 2022 52%, June 2023 64%, June 2024 57%, June 2025 67%, June 2026 65%.
Every mark, every series
| Series | Out of | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|
| June 2026 | 300 | 22073% | 19665% | 17057% | 14448% | 11940% | 9431% |
| June 2025 | 300 | 22575% | 20067% | 17358% | 14649% | 11940% | 9231% |
| June 2024 | 300 | 19966% | 17157% | 14448% | 11739% | 9130% | 6522% |
| June 2023 | 300 | 22274% | 19264% | 16254% | 13244% | 10234% | 7224% |
| June 2022 | 300 | 18662% | 15552% | 12843% | 10134% | 7525% | 4916% |
| November 2021 | 300 | 18562% | 15552% | 13043% | 10635% | 8227% | 5819% |
| November 2020 | 300 | 19364% | 16354% | 13645% | 10936% | 8227% | 5518% |
| June 2019 | 300 | 20468% | 17558% | 15251% | 12943% | 10635% | 8428% |
| June 2018 | 300 | 19766% | 17057% | 14548% | 12140% | 9732% | 7324% |
| June 2017 | 300 | 20067% | 17458% | 15050% | 12642% | 10234% | 7926% |
Raw marks for the whole qualification, with the share of the maximum.The chart shows June series only; November and January sittings, mostly resits, are in the table.No exams were sat in 2020 or 2021, when grades were assessed by teachers, so those years are blank. From Pearson Edexcel's A level grade boundary documents: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, November 2020, June 2019, June 2018, June 2017.
OCR
OCR past papersBiology A (H420)
Grade C needed 124 out of 270 marks (46%) in June 2026; in the June series from 2017 to 2025 it ranged from 39% (2017) to 42% (2019).
June 2026 out of 270
- A*
- 204 76%
- A
- 176 65%
- B
- 150 56%
- C
- 124 46%
- D
- 98 36%
- E
- 72 27%
Grade C as a share of the maximum: June 2017 39%, June 2018 41%, June 2019 42%, June 2022 39%, June 2023 39%, June 2024 41%, June 2025 42%, June 2026 46%. Grade A as a share of the maximum: June 2017 56%, June 2018 59%, June 2019 59%, June 2022 58%, June 2023 57%, June 2024 59%, June 2025 60%, June 2026 65%.
Every mark, every series
| Series | Out of | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|
| June 2026 | 270 | 20476% | 17665% | 15056% | 12446% | 9836% | 7227% |
| June 2025 | 270 | 18769% | 16160% | 13751% | 11342% | 9033% | 6725% |
| June 2024 | 270 | 18769% | 16059% | 13650% | 11241% | 8933% | 6624% |
| June 2023 | 270 | 18368% | 15557% | 13048% | 10639% | 8230% | 5821% |
| June 2022 | 270 | 18468% | 15658% | 13048% | 10439% | 7829% | 5219% |
| November 2021 | 270 | 16963% | 13751% | 11543% | 9435% | 7327% | 5219% |
| November 2020 | 270 | 17364% | 14453% | 12145% | 9836% | 7628% | 5420% |
| June 2019 | 270 | 18569% | 15859% | 13650% | 11442% | 9234% | 7026% |
| June 2018 | 270 | 18769% | 15959% | 13550% | 11141% | 8732% | 6323% |
| June 2017 | 270 | 17966% | 15056% | 12847% | 10639% | 8431% | 6323% |
Raw marks for the whole qualification, with the share of the maximum.The chart shows June series only; November and January sittings, mostly resits, are in the table.No exams were sat in 2020 or 2021, when grades were assessed by teachers, so those years are blank. From OCR's A level grade boundary documents: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, November 2020, June 2019, June 2018, June 2017.
Biology B (Advancing Biology) (H422)
Grade C needed 134 out of 270 marks (50%) in June 2026; in the June series from 2017 to 2025 it ranged from 36% (2022) to 48% (2025).
June 2026 out of 270
- A*
- 193 71%
- A
- 173 64%
- B
- 153 57%
- C
- 134 50%
- D
- 115 43%
- E
- 96 36%
Grade C as a share of the maximum: June 2017 42%, June 2018 39%, June 2019 40%, June 2022 36%, June 2023 40%, June 2024 41%, June 2025 48%, June 2026 50%. Grade A as a share of the maximum: June 2017 57%, June 2018 55%, June 2019 56%, June 2022 50%, June 2023 55%, June 2024 56%, June 2025 62%, June 2026 64%.
Every mark, every series
| Series | Out of | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|
| June 2026 | 270 | 19371% | 17364% | 15357% | 13450% | 11543% | 9636% |
| June 2025 | 270 | 18669% | 16762% | 14855% | 12948% | 11041% | 9134% |
| June 2024 | 270 | 17163% | 15156% | 13149% | 11141% | 9134% | 7227% |
| June 2023 | 270 | 16963% | 14855% | 12747% | 10740% | 8732% | 6725% |
| June 2022 | 270 | 15357% | 13450% | 11543% | 9636% | 7829% | 6022% |
| November 2021 | 270 | 15859% | 12546% | 10338% | 8130% | 6022% | 3914% |
| November 2020 | 270 | 16963% | 13450% | 11041% | 8632% | 6323% | 4015% |
| June 2019 | 270 | 17866% | 15256% | 13048% | 10840% | 8632% | 6424% |
| June 2018 | 270 | 17063% | 14855% | 12647% | 10539% | 8431% | 6323% |
| June 2017 | 270 | 17866% | 15457% | 13450% | 11442% | 9435% | 7427% |
Raw marks for the whole qualification, with the share of the maximum.The chart shows June series only; November and January sittings, mostly resits, are in the table.No exams were sat in 2020 or 2021, when grades were assessed by teachers, so those years are blank. From OCR's A level grade boundary documents: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, November 2020, June 2019, June 2018, June 2017.
Eduqas
Eduqas past papersSpecification A400, Biology.
Grade C needed 147 out of 300 marks (49%) in June 2026; in the June series from 2017 to 2025 it ranged from 34% (2022) to 47% (2025).
June 2026 out of 300
- A*
- 229 76%
- A
- 204 68%
- B
- 175 58%
- C
- 147 49%
- D
- 119 40%
- E
- 91 30%
Grade C as a share of the maximum: June 2017 45%, June 2018 41%, June 2019 41%, June 2022 34%, June 2023 42%, June 2024 42%, June 2025 47%, June 2026 49%. Grade A as a share of the maximum: June 2017 61%, June 2018 60%, June 2019 59%, June 2022 54%, June 2023 62%, June 2024 61%, June 2025 68%, June 2026 68%.
Every mark, every series
| Series | Out of | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|
| June 2026 | 300 | 22976% | 20468% | 17558% | 14749% | 11940% | 9130% |
| June 2025 | 300 | 23077% | 20368% | 17257% | 14247% | 11237% | 8227% |
| June 2024 | 300 | 21471% | 18361% | 15552% | 12742% | 9933% | 7124% |
| June 2023 | 300 | 21572% | 18762% | 15652% | 12542% | 9431% | 6421% |
| June 2022 | 300 | 20067% | 16354% | 13344% | 10334% | 7324% | 4415% |
| November 2021 | 300 | 18963% | 15652% | 12943% | 10334% | 7726% | 5117% |
| November 2020 | 300 | 19766% | 16555% | 13746% | 10936% | 8127% | 5418% |
| June 2019 | 300 | 20869% | 17759% | 15050% | 12441% | 9833% | 7224% |
| June 2018 | 300 | 21271% | 18060% | 15251% | 12441% | 9632% | 6923% |
| June 2017 | 300 | 20869% | 18261% | 15853% | 13445% | 11137% | 8829% |
Raw marks for the whole qualification, with the share of the maximum.The chart shows June series only; November and January sittings, mostly resits, are in the table.No exams were sat in 2020 or 2021, when grades were assessed by teachers, so those years are blank. From Eduqas's A level grade boundary documents: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, November 2020, June 2019, June 2018, June 2017.
WJEC
WJEC past papersSpecification 1400, Biology.
WJEC awards this qualification on its uniform mark scale (UMS), so there is no raw-mark total for the whole qualification. Its documents give the raw marks for each unit.
WJEC, June 2026 · WJEC, June 2024 · WJEC, June 2023 · WJEC, June 2022
CCEA
CCEA past papersSpecification 43, Biology.
CCEA awards this qualification on its uniform mark scale (UMS), so there is no raw-mark total for the whole qualification. Its documents give the raw marks for each unit.
CCEA, June 2026 · CCEA, June 2025 · CCEA, June 2024 · CCEA, June 2023