Grade boundaries
OCR A-level Biology A H420 grade boundaries
The newest summer series is shown first. Type a mark to see its grade, or choose another tier, series or paper.
Level
Board
Course
Boundaries
Whole subject or paper
Type a mark to see its grade.
The boundaries
June 2026 · whole subject
| Grade | Needs |
|---|---|
| A* | 204 of 270 |
| A | 176 of 270 |
| B | 150 of 270 |
| C | 124 of 270 |
| D | 98 of 270 |
| E | 72 of 270 |
Every course·Mock grade calculator
Marks for each grade in June 2026
In total
- 204 out of 270 on OCR H420 in total was a grade A* in June 2026.
- 176 out of 270 on OCR H420 in total was a grade A in June 2026.
- 150 out of 270 on OCR H420 in total was a grade B in June 2026.
- 124 out of 270 on OCR H420 in total was a grade C in June 2026.
- 98 out of 270 on OCR H420 in total was a grade D in June 2026.
- 72 out of 270 on OCR H420 in total was a grade E in June 2026.
Every series
10 series, newest first. Each mark is the least that reaches the grade, out of the total under the column’s name.
June 2026
From OCR’s grade boundaries for June 2026: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 204 | 82 | 71 | 51 |
| A | 176 | 71 | 61 | 44 |
| B | 150 | 61 | 51 | 38 |
| C | 124 | 50 | 42 | 32 |
| D | 98 | 39 | 33 | 26 |
| E | 72 | 28 | 24 | 20 |
June 2025
From OCR’s grade boundaries for June 2025: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 187 | 69 | 69 | 49 |
| A | 161 | 59 | 60 | 42 |
| B | 137 | 49 | 52 | 36 |
| C | 113 | 40 | 43 | 30 |
| D | 90 | 31 | 35 | 24 |
| E | 67 | 22 | 26 | 19 |
June 2024
From OCR’s grade boundaries for June 2024: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 187 | 71 | 68 | 48 |
| A | 160 | 61 | 58 | 41 |
| B | 136 | 52 | 49 | 35 |
| C | 112 | 43 | 40 | 29 |
| D | 89 | 33 | 32 | 24 |
| E | 66 | 23 | 24 | 19 |
June 2023
From OCR’s grade boundaries for June 2023: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 183 | 68 | 65 | 50 |
| A | 155 | 58 | 55 | 42 |
| B | 130 | 48 | 46 | 36 |
| C | 106 | 38 | 38 | 30 |
| D | 82 | 29 | 29 | 24 |
| E | 58 | 20 | 20 | 18 |
June 2022
From OCR’s grade boundaries for June 2022: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 184 | 71 | 66 | 47 |
| A | 156 | 60 | 56 | 40 |
| B | 130 | 50 | 47 | 33 |
| C | 104 | 40 | 38 | 26 |
| D | 78 | 30 | 28 | 20 |
| E | 52 | 19 | 19 | 14 |
November 2021
From OCR’s grade boundaries for November 2021: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 169 | 66 | 59 | 44 |
| A | 137 | 55 | 46 | 36 |
| B | 115 | 46 | 39 | 30 |
| C | 94 | 37 | 33 | 24 |
| D | 73 | 29 | 26 | 18 |
| E | 52 | 20 | 19 | 13 |
November 2020
From OCR’s grade boundaries for November 2020: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 173 | 68 | 60 | 45 |
| A | 144 | 58 | 49 | 37 |
| B | 121 | 49 | 41 | 31 |
| C | 98 | 40 | 33 | 25 |
| D | 76 | 31 | 26 | 19 |
| E | 54 | 21 | 19 | 14 |
June 2019
From OCR’s grade boundaries for June 2019: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 185 | 76 | 61 | 48 |
| A | 158 | 65 | 52 | 41 |
| B | 136 | 56 | 45 | 35 |
| C | 114 | 47 | 38 | 29 |
| D | 92 | 37 | 31 | 24 |
| E | 70 | 28 | 23 | 19 |
June 2018
From OCR’s grade boundaries for June 2018: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 187 | 76 | 60 | 51 |
| A | 159 | 65 | 51 | 43 |
| B | 135 | 54 | 43 | 37 |
| C | 111 | 44 | 35 | 31 |
| D | 87 | 34 | 27 | 25 |
| E | 63 | 24 | 20 | 19 |
June 2017
From OCR’s grade boundaries for June 2017: the board’s document.
| Grade | Whole subjectout of 270 | H420/01out of 100 | H420/02out of 100 | H420/03out of 70 |
|---|---|---|---|---|
| A* | 179 | 67 | 66 | 46 |
| A | 150 | 56 | 57 | 37 |
| B | 128 | 47 | 48 | 33 |
| C | 106 | 38 | 40 | 28 |
| D | 84 | 30 | 31 | 23 |
| E | 63 | 22 | 23 | 18 |
Questions
What mark do you need for a grade A in OCR A-level Biology A H420?
In June 2026, the least mark for the whole subject that reached a grade A was 176 out of 270 in total.
What mark do you need for a grade C in OCR A-level Biology A H420?
In June 2026, the least mark for the whole subject that reached a grade C was 124 out of 270 in total.
Which series of OCR A-level Biology A H420 grade boundaries are there?
10 series, from June 2017 to June 2026: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, November 2020, June 2019, June 2018 and June 2017.
Do OCR A-level Biology A H420 grade boundaries change each year?
Yes. Across the 10 series here, a grade A in total needed from 137 out of 270 (November 2021) to 176 out of 270 (June 2026).
Other courses
Other OCR A level courses
- Level 3 FSMQ: Additional Mathematics 6993
- A-level Ancient History H407
- A Level Art and Design: Art, Craft and Design H600
- A Level Art and Design: Critical and Contextual Studies H606
- A Level Art and Design: Fine Art H601
- A Level Art and Design: Graphic Communication H602
- A Level Art and Design: Photography H603
- A Level Art and Design: Textile Design H604
- A Level Art and Design: Three-Dimensional Design H605
- A-level Biology B (Advancing Biology) H422
- A-level Business H431
- A-level Chemistry A H432
- A-level Chemistry B (Salters) H433
- A-level Classical Civilisation H408
- A-level Classical Greek H444
- A-level Computer Science H446
- Level 3 Certificate in Core Maths A (MEI): Quantitative Reasoning H868
- Level 3 Certificate in Core Maths B (MEI): Quantitative Problem Solving H869
- A-level Design and Technology H404
- A-level Design and Technology H405
- A-level Design and Technology H406
- A-level Drama and Theatre H459
- A-level Economics H460
- A-level English Language H470
- A-level English Language and Literature (EMC) H474
- A-level English Literature H472
- A-level Film Studies H410
- A-level Further Mathematics A H245
- A Level Further Mathematics B (MEI) H645
- A-level Geography H481
- A-level Geology H414
- A-level History A H505
- A-level Latin H443
- A-level Law H418
- A-level Mathematics A H240
- A-level Mathematics B (MEI) H640
- A-level Media Studies H409
- A-level Music H543
- A-level Physical Education H555
- A-level Physics A H556
- A-level Physics B (Advancing Physics) H557
- A-level Psychology H567
- A-level Religious Studies H573
- A-level Sociology H580
A series, or the safe rule
A paper is graded against the boundaries of the series it was sat in. Choose that series and the grade is the one the board’s boundaries gave that sitting. Where a series published more than one set of boundaries for the whole subject, one for each combination of papers, each grade takes the highest of them, and the line under the grade says so.
The safe rule is for a mark with no series of its own, such as a mock. For each grade it takes the highest boundary in the board’s most recent summer series, up to three of them and leaving out 2020 to 2022, or the course’s main series where it has no summer one. A grade it gives would have been enough in each of them. The line under the grade names the series it counted.
In the app you log a paper in one line, or question by question where asterisk has its questions, and each grade comes from these same boundaries. Open the app.
Not here
CCEA, AS level, IB and AP: the app holds no grade boundaries for them, so they are not offered.
Where these numbers come from
Boards publish their grade boundaries after each series, and that is all this page holds: each grade’s boundary mark and what the subject or paper is out of, as the board printed them. The papers stay on the boards’ own sites; nothing here reproduces a question or a mark scheme.