AQA A level Chemistry grade boundaries
AQA A level Chemistry grade boundaries for 10 series, June 2017 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 AQA's own document, which is linked underneath.
June 2026 AQA A level Chemistry grade boundaries
Newest
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 25585% | 22073.3% | 18160.3% | 14247.3% | 10434.7% | 6622% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 9186.7% | 8076.2% | 6561.9% | 5148.6% | 3735.2% | 2321.9% |
| Chemistry Paper 27405/2 | 105 | 8782.9% | 7369.5% | 6057.1% | 4744.8% | 3432.4% | 2221% |
| Chemistry Paper 37405/3 | 90 | 7785.6% | 6774.4% | 5561.1% | 4347.8% | 3235.6% | 2123.3% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2026 (opens aqa.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 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 23979.7% | 19765.7% | 16254% | 12742.3% | 9331% | 5919.7% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8480% | 7066.7% | 5754.3% | 4441.9% | 3129.5% | 1918.1% |
| Chemistry Paper 27405/2 | 105 | 8278.1% | 6662.9% | 5451.4% | 4240% | 3129.5% | 2019% |
| Chemistry Paper 37405/3 | 90 | 7381.1% | 6167.8% | 5055.6% | 4044.4% | 3033.3% | 2022.2% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2025 (opens aqa.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 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 23979.7% | 19866% | 16254% | 12642% | 9030% | 5518.3% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8782.9% | 7470.5% | 6057.1% | 4643.8% | 3331.4% | 2019% |
| Chemistry Paper 27405/2 | 105 | 8278.1% | 6763.8% | 5451.4% | 4240% | 3028.6% | 1817.1% |
| Chemistry Paper 37405/3 | 90 | 7077.8% | 5763.3% | 4752.2% | 3741.1% | 2730% | 1718.9% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2024 (opens aqa.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 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 25083.3% | 21070% | 17357.7% | 13645.3% | 9933% | 6220.7% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8782.9% | 7268.6% | 5855.2% | 4542.9% | 3230.5% | 1918.1% |
| Chemistry Paper 27405/2 | 105 | 8883.8% | 7571.4% | 6158.1% | 4845.7% | 3533.3% | 2221% |
| Chemistry Paper 37405/3 | 90 | 7583.3% | 6370% | 5257.8% | 4145.6% | 3134.4% | 2123.3% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2023 (opens filestore.aqa.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 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 23779% | 19665.3% | 15852.7% | 12140.3% | 8428% | 4715.7% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8177.1% | 6561.9% | 5249.5% | 3937.1% | 2725.7% | 1514.3% |
| Chemistry Paper 27405/2 | 105 | 8480% | 7066.7% | 5653.3% | 4341% | 3028.6% | 1716.2% |
| Chemistry Paper 37405/3 | 90 | 7280% | 6167.8% | 4954.4% | 3741.1% | 2628.9% | 1516.7% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2022 (opens filestore.aqa.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.
November 2021 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 23678.7% | 19264% | 15852.7% | 12441.3% | 9030% | 5618.7% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8278.1% | 6763.8% | 5451.4% | 4240% | 3028.6% | 1817.1% |
| Chemistry Paper 27405/2 | 105 | 8278.1% | 6763.8% | 5552.4% | 4341% | 3129.5% | 2019% |
| Chemistry Paper 37405/3 | 90 | 7178.9% | 5864.4% | 4853.3% | 3842.2% | 2831.1% | 1820% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level November 2021 (opens filestore.aqa.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.
November 2020 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 23578.3% | 19264% | 15752.3% | 12341% | 8929.7% | 5518.3% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8379% | 6864.8% | 5552.4% | 4240% | 3028.6% | 1817.1% |
| Chemistry Paper 27405/2 | 105 | 8278.1% | 6662.9% | 5451.4% | 4240% | 3028.6% | 1918.1% |
| Chemistry Paper 37405/3 | 90 | 7178.9% | 5864.4% | 4853.3% | 3842.2% | 2831.1% | 1820% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level November 2020 (opens filestore.aqa.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 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 24682% | 20668.7% | 17056.7% | 13545% | 10033.3% | 6521.7% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8581% | 7167.6% | 5855.2% | 4542.9% | 3331.4% | 2120% |
| Chemistry Paper 27405/2 | 105 | 8681.9% | 7268.6% | 5956.2% | 4744.8% | 3533.3% | 2321.9% |
| Chemistry Paper 37405/3 | 90 | 7482.2% | 6370% | 5257.8% | 4145.6% | 3134.4% | 2123.3% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2019 (opens filestore.aqa.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 2018 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 24180.3% | 19866% | 16354.3% | 12842.7% | 9431.3% | 6020% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8681.9% | 7268.6% | 5855.2% | 4542.9% | 3230.5% | 1918.1% |
| Chemistry Paper 27405/2 | 105 | 8480% | 6965.7% | 5754.3% | 4542.9% | 3331.4% | 2120% |
| Chemistry Paper 37405/3 | 90 | 7178.9% | 5763.3% | 4752.2% | 3842.2% | 2932.2% | 2022.2% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2018 (opens filestore.aqa.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 2017 AQA A level Chemistry grade boundaries
| Qualification | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry | 300 | 24682% | 20468% | 16956.3% | 13444.7% | 9933% | 6421.3% |
| Paper | Max mark | Grade: lowest mark, and % of max mark | |||||
|---|---|---|---|---|---|---|---|
| Grade A* | Grade A | Grade B | Grade C | Grade D | Grade E | ||
| Chemistry Paper 17405/1 | 105 | 8883.8% | 7571.4% | 6259% | 4946.7% | 3634.3% | 2321.9% |
| Chemistry Paper 27405/2 | 105 | 8681.9% | 7268.6% | 5956.2% | 4744.8% | 3533.3% | 2221% |
| Chemistry Paper 37405/3 | 90 | 7178.9% | 5763.3% | 4752.2% | 3842.2% | 2932.2% | 1921.1% |
- Paper (component) boundaries are notional: AQA publishes them for illustration, and only the subject boundaries decide the grade.
Source: AQA grade boundaries, A level June 2017 (opens filestore.aqa.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.
How the Chemistry boundaries have moved
A A needed 68% of the marks in June 2017 and 73.3% in June 2026.
Each point is the lowest mark for that grade in the June series, as a percentage of the total. Other series, such as November resits, are left out so the years compare like with like. A solid line is the higher grade and a dashed line the lower one.
Show as a table
| Series | Grade A | Grade E |
|---|---|---|
| June 2026 | 220/300 (73.3%) | 66/300 (22%) |
| June 2025 | 197/300 (65.7%) | 59/300 (19.7%) |
| June 2024 | 198/300 (66%) | 55/300 (18.3%) |
| June 2023 | 210/300 (70%) | 62/300 (20.7%) |
| June 2022 | 196/300 (65.3%) | 47/300 (15.7%) |
| June 2019 | 206/300 (68.7%) | 65/300 (21.7%) |
| June 2018 | 198/300 (66%) | 60/300 (20%) |
| June 2017 | 204/300 (68%) | 64/300 (21.3%) |
Common questions
What were the Chemistry grade boundaries in June 2026?
In June 2026, an A needed 220 out of 300 and an E needed 66. The full table, with the boundaries for each paper, is at the top of this page.
Where do these AQA A level Chemistry grade boundaries come from?
Every number is copied from AQA'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 Chemistry grade boundaries published?
AQA 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 AQA 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.