Paper 03
Chemistry
OCR GCSE · June 2025 ·4 awards
Turn a mark into a grade
This is the total for the whole subject, not one paper. Working from paper marks? Use the paper calculator below.
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Enter a mark to place it on the scale.
Every boundary published
Raw marks for the whole subject. The small figure under each is that mark as a percentage of the maximum — the only number that compares fairly across boards.
| Award | Code | Max | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | U |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemistry (Gateway Science) — Higher | J248 | 180 | 15888 | 14581 | 13273 | 11262 | 9251 | 7341 | 6335 | — | — | 00 |
| Chemistry (Twenty First Century Science) — Higher | J258 | 180 | 14178 | 12771 | 11463 | 9452 | 7542 | 5631 | 4626 | — | — | 00 |
| Chemistry (Gateway Science) — Foundation | J248 | 180 | — | — | — | — | 11363 | 9754 | 7441 | 5128 | 2816 | 00 |
| Chemistry (Twenty First Century Science) — Foundation | J258 | 180 | — | — | — | — | 11564 | 9553 | 7341 | 5128 | 2916 | 00 |
Transcribed from Oxford Cambridge and RSA Examinations, June 2025 (PDF), retrieved 2026-08-16.
Work back from your paper marks
Fill in what you already have and leave the rest blank. A blank box means not sat yet, which is not the same as a zero.
Paper 04
Banked 0 of 180. Still to play for: 0.
| Grade | Needs | From what's left | Verdict |
|---|
The same subject on other boards, June 2025
Raw marks are not comparable between boards, because the maximum marks differ. The percentage of the maximum is the only fair comparison — and it is usually closer than people expect.
| Board | Award | Code | Max | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | U |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OCR | Chemistry (Gateway Science) — Higher | J248 | 180 | 15888 | 14581 | 13273 | 11262 | 9251 | 7341 | 6335 | — | — | 00 |
| AQA | Chemistry — Higher | 8462H | 200 | 15075 | 13266 | 11557 | 9045 | 6633 | 4221 | 3015 | — | — | — |
| Edexcel | Chemistry — Higher | 1CH0 | 200 | 16181 | 14472 | 12864 | 10653 | 8442 | 6231 | 5126 | — | — | 00 |
Other series
Questions
- What was the grade 4 boundary for OCR GCSE Chemistry in June 2025?
- In June 2025, Chemistry (Gateway Science) — Higher: 73 out of 180; Chemistry (Twenty First Century Science) — Higher: 56 out of 180; Chemistry (Gateway Science) — Foundation: 97 out of 180; Chemistry (Twenty First Century Science) — Foundation: 95 out of 180.
- Will the boundaries be the same next year?
- No. Boards reset boundaries after every series so a grade means the same thing even when a paper is harder or easier than intended. Past boundaries tell you the likely range, not the answer.