A-Level Biology grade boundaries — June 2025

Cambridge International AS & A Level (9700). Minimum raw marks for each grade (A*–E) in the June 2025 series, by paper combination. Pick the option matching the papers you sat.

Papers 14, 24, 37, 44, 54

Grade	Min mark	Min %
A*	191	74%
A	167	65%
B	143	56%
C	123	48%
D	104	40%
E	85	33%

Maximum mark: 260.

Papers 11, 21, 31, 41, 51

Grade	Min mark	Min %
A*	200	77%
A	175	68%
B	150	58%
C	130	50%
D	110	43%
E	90	35%

Maximum mark: 260.

Papers 12, 22, 33, 42, 52

Grade	Min mark	Min %
A*	188	73%
A	163	63%
B	138	54%
C	116	45%
D	95	37%
E	74	29%

Maximum mark: 260.

Papers 13, 23, 35, 43, 53

Grade	Min mark	Min %
A*	201	78%
A	175	68%
B	149	58%
C	129	50%
D	109	42%
E	90	35%

Maximum mark: 260.

Papers 44, 54, 85

Grade	Min mark	Min %
A*	185	72%
A	161	62%
B	137	53%
C	118	46%
D	99	39%
E	80	31%

Maximum mark: 260.

Papers 44, 54, 88

Grade	Min mark	Min %
A*	189	73%
A	165	64%
B	141	55%
C	121	47%
D	102	40%
E	83	32%

Maximum mark: 260.

Papers 41, 51, 84

Grade	Min mark	Min %
A*	204	79%
A	181	70%
B	158	61%
C	137	53%
D	116	45%
E	96	37%

Maximum mark: 260.

Papers 41, 51, 87

Grade	Min mark	Min %
A*	205	79%
A	182	70%
B	159	62%
C	138	54%
D	117	45%
E	96	37%

Maximum mark: 260.

Papers 42, 52, 85

Grade	Min mark	Min %
A*	187	72%
A	161	62%
B	135	52%
C	114	44%
D	93	36%
E	72	28%

Maximum mark: 260.

Papers 42, 52, 88

Grade	Min mark	Min %
A*	191	74%
A	165	64%
B	139	54%
C	117	45%
D	96	37%
E	75	29%

Maximum mark: 260.

Papers 43, 53, 86

Grade	Min mark	Min %
A*	199	77%
A	175	68%
B	151	59%
C	130	50%
D	109	42%
E	89	35%

Maximum mark: 260.

Papers 44, 54, 96

Grade	Min mark	Min %
A*	188	73%
A	165	64%
B	142	55%
C	121	47%
D	100	39%
E	80	31%

Maximum mark: 260.

Papers 44, 54, 99

Grade	Min mark	Min %
A*	190	74%
A	168	65%
B	146	57%
C	125	49%
D	104	40%
E	83	32%

Maximum mark: 260.

Papers 43, 53, 94

Grade	Min mark	Min %
A*	199	77%
A	172	67%
B	145	56%
C	124	48%
D	104	40%
E	84	33%

Maximum mark: 260.

Papers 41, 51, 95

Grade	Min mark	Min %
A*	203	79%
A	177	69%
B	151	59%
C	130	50%
D	110	43%
E	90	35%

Maximum mark: 260.

Papers 41, 51, 98

Grade	Min mark	Min %
A*	203	79%
A	177	69%
B	151	59%
C	131	51%
D	111	43%
E	91	35%

Maximum mark: 260.

Papers 42, 52, 96

Grade	Min mark	Min %
A*	190	74%
A	165	64%
B	140	54%
C	117	45%
D	94	37%
E	72	28%

Maximum mark: 260.

Papers 42, 52, 99

Grade	Min mark	Min %
A*	192	74%
A	168	65%
B	144	56%
C	121	47%
D	98	38%
E	75	29%

Maximum mark: 260.

Papers 41, 51, 94

Grade	Min mark	Min %
A*	202	78%
A	176	68%
B	150	58%
C	130	50%
D	110	43%
E	91	35%

Maximum mark: 260.

Papers 42, 52, 95

Grade	Min mark	Min %
A*	194	75%
A	170	66%
B	146	57%
C	124	48%
D	102	40%
E	80	31%

Maximum mark: 260.

Papers 42, 52, 98

Grade	Min mark	Min %
A*	194	75%
A	170	66%
B	146	57%
C	124	48%
D	102	40%
E	81	32%

Maximum mark: 260.

Papers 43, 53, 96

Grade	Min mark	Min %
A*	196	76%
A	168	65%
B	140	54%
C	118	46%
D	96	37%
E	75	29%

Maximum mark: 260.

Papers 43, 53, 99

Grade	Min mark	Min %
A*	198	77%
A	171	66%
B	144	56%
C	122	47%
D	100	39%
E	78	30%

Maximum mark: 260.

Papers 14, 24, 38, 44, 54

Grade	Min mark	Min %
A*	191	74%
A	168	65%
B	145	56%
C	125	49%
D	106	41%
E	87	34%

Maximum mark: 260.

Papers 11, 21, 32, 41, 51

Grade	Min mark	Min %
A*	199	77%
A	175	68%
B	151	59%
C	131	51%
D	111	43%
E	91	35%

Maximum mark: 260.

Papers 12, 22, 34, 42, 52

Grade	Min mark	Min %
A*	188	73%
A	164	64%
B	140	54%
C	118	46%
D	97	38%
E	76	30%

Maximum mark: 260.

Papers 50

Grade	Min mark	Min %
A	54	72%
B	45	60%
C	38	51%
D	31	42%
E	25	34%

Maximum mark: 75.

Papers 11, 21, 31

Grade	Min mark	Min %
A	90	70%
B	80	62%
C	69	54%
D	59	46%
E	49	38%

Maximum mark: 130.

Papers 11, 21, 32

Grade	Min mark	Min %
A	90	70%
B	81	63%
C	70	54%
D	60	47%
E	50	39%

Maximum mark: 130.

Papers 12, 22, 33

Grade	Min mark	Min %
A	85	66%
B	73	57%
C	63	49%
D	53	41%
E	43	34%

Maximum mark: 130.

Papers 12, 22, 34

Grade	Min mark	Min %
A	86	67%
B	75	58%
C	65	50%
D	55	43%
E	45	35%

Maximum mark: 130.

Papers 13, 23, 35

Grade	Min mark	Min %
A	94	73%
B	84	65%
C	74	57%
D	65	50%
E	56	44%

Maximum mark: 130.

Papers 14, 24, 37

Grade	Min mark	Min %
A	89	69%
B	76	59%
C	66	51%
D	56	44%
E	46	36%

Maximum mark: 130.

Papers 14, 24, 38

Grade	Min mark	Min %
A	90	70%
B	78	60%
C	68	53%
D	58	45%
E	48	37%

Maximum mark: 130.

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Figures sourced from the official Cambridge grade threshold tables. Always confirm with your exam board.