Grade boundaries

Edexcel A-level Biology A (Salters-Nuffield) 9BN0 grade boundaries

The newest summer series is shown first. Type a mark to see its grade, or choose another tier, series or paper.

Level

Subject

Board

Course

Boundaries

Whole subject or paper

Mark

Out of

Type a mark to see its grade.

The boundaries

June 2026 · whole subject

Grade	Needs
A*	220 of 300
A	196 of 300
B	170 of 300
C	144 of 300
D	119 of 300
E	94 of 300

Every course·Mock grade calculator

Marks for each grade in June 2026

In total

220 out of 300 on Edexcel 9BN0 in total was a grade A* in June 2026.
196 out of 300 on Edexcel 9BN0 in total was a grade A in June 2026.
170 out of 300 on Edexcel 9BN0 in total was a grade B in June 2026.
144 out of 300 on Edexcel 9BN0 in total was a grade C in June 2026.
119 out of 300 on Edexcel 9BN0 in total was a grade D in June 2026.
94 out of 300 on Edexcel 9BN0 in total was a grade E in June 2026.

Every paper 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 Edexcel’s grade boundaries for June 2026: the board’s document.

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	220	77	70	73
A	196	69	62	65
B	170	59	55	56
C	144	49	48	47
D	119	39	41	39
E	94	29	34	31

June 2025

From Edexcel’s grade boundaries for June 2025: the board’s document.

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	225	79	72	74
A	200	70	64	66
B	173	59	56	57
C	146	48	48	48
D	119	38	40	40
E	92	28	32	32

June 2024

From Edexcel’s grade boundaries for June 2024: the board’s document.

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	199	72	69	58
A	171	62	59	50
B	144	51	50	42
C	117	40	41	34
D	91	30	33	27
E	65	20	25	20

June 2023

From Edexcel’s grade boundaries for June 2023: the board’s document.

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	222	79	74	69
A	192	68	64	60
B	162	57	54	50
C	132	46	44	41
D	102	35	34	32
E	72	24	25	23

June 2022

From Edexcel’s grade boundaries for June 2022: the board’s document.

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	186	66	56	64
A	155	55	47	53
B	128	45	39	43
C	101	36	31	34
D	75	27	23	25
E	49	18	15	16

November 2021

From Edexcel’s grade boundaries for November 2021: the board’s document.

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	185	66	64	55
A	155	55	54	46
B	130	46	45	38
C	106	37	36	31
D	82	29	28	24
E	58	21	20	17

October 2020

From Edexcel’s grade boundaries for October 2020: the board’s document.

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	193	70	66	57
A	163	59	56	48
B	136	49	46	39
C	109	39	37	31
D	82	30	28	23
E	55	21	19	15

June 2019

From Edexcel’s grade boundaries for June 2019: the board’s document.

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	204	73	70	61
A	175	63	60	52
B	152	55	52	45
C	129	47	44	38
D	106	39	36	31
E	84	31	29	24

June 2018

From Edexcel’s grade boundaries for June 2018: the board’s document.

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	197	68	58	71
A	170	59	50	61
B	145	50	42	52
C	121	42	35	43
D	97	34	28	34
E	73	26	21	26

June 2017

From Edexcel’s grade boundaries for June 2017: the board’s document.

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	200	70	66	64
A	174	61	57	56
B	150	53	48	48
C	126	45	40	40
D	102	37	32	33
E	79	29	24	26

Questions

What mark do you need for a grade A in Edexcel A-level Biology A (Salters-Nuffield) 9BN0?

In June 2026, the least mark for the whole subject that reached a grade A was 196 out of 300 in total.

What mark do you need for a grade C in Edexcel A-level Biology A (Salters-Nuffield) 9BN0?

In June 2026, the least mark for the whole subject that reached a grade C was 144 out of 300 in total.

Which series of Edexcel A-level Biology A (Salters-Nuffield) 9BN0 grade boundaries are there?

10 series, from June 2017 to June 2026: June 2026, June 2025, June 2024, June 2023, June 2022, November 2021, October 2020, June 2019, June 2018 and June 2017.

Do Edexcel A-level Biology A (Salters-Nuffield) 9BN0 grade boundaries change each year?

Yes. Across the 10 series here, a grade A in total needed from 155 out of 300 (June 2022) to 200 out of 300 (June 2025).

Other Edexcel A level courses

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.

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	220	77	70	73
A	196	69	62	65
B	170	59	55	56
C	144	49	48	47
D	119	39	41	39
E	94	29	34	31

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	225	79	72	74
A	200	70	64	66
B	173	59	56	57
C	146	48	48	48
D	119	38	40	40
E	92	28	32	32

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	222	79	74	69
A	192	68	64	60
B	162	57	54	50
C	132	46	44	41
D	102	35	34	32
E	72	24	25	23

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	204	73	70	61
A	175	63	60	52
B	152	55	52	45
C	129	47	44	38
D	106	39	36	31
E	84	31	29	24

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	200	70	66	64
A	174	61	57	56
B	150	53	48	48
C	126	45	40	40
D	102	37	32	33
E	79	29	24	26

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	220	77	70	73
A	196	69	62	65
B	170	59	55	56
C	144	49	48	47
D	119	39	41	39
E	94	29	34	31

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	225	79	72	74
A	200	70	64	66
B	173	59	56	57
C	146	48	48	48
D	119	38	40	40
E	92	28	32	32

Grade	Whole subjectout of 300	9BN0/1out of 100	9BN0/2out of 100	9BN0/3out of 100
A*	222	79	74	69
A	192	68	64	60
B	162	57	54	50
C	132	46	44	41
D	102	35	34	32
E	72	24	25	23

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	204	73	70	61
A	175	63	60	52
B	152	55	52	45
C	129	47	44	38
D	106	39	36	31
E	84	31	29	24

Grade	Whole subjectout of 300	9BN0/01out of 100	9BN0/02out of 100	9BN0/03out of 100
A*	200	70	66	64
A	174	61	57	56
B	150	53	48	48
C	126	45	40	40
D	102	37	32	33
E	79	29	24	26