IGCSE Biology (0610) grade boundaries — November 2025

Cambridge IGCSE (CAIE) (0610). The official grade thresholds for the November 2025 series — the minimum raw mark needed for each grade, by tier and paper combination. Pick the option matching the papers you sat.

Cambridge publishes these as grade threshold tables: "grade thresholds" and "grade boundaries" are two names for the same numbers.

November 2025 at a glance

A A* in Biology required 162/200 (81%) on extended · papers 21, 41, 51.
That A* threshold is 3 marks higher than June 2025 — slightly harder to achieve.
Across paper variants, the A* boundary ranged from 162 to 164 marks — variant choice mattered this session.
A grade C needed roughly 47% on extended · papers 21, 41, 51.

Extended · Papers 21, 41, 51

Grade	Min mark	Min %
A*	162	81%
A	139	70%
B	116	58%
C	94	47%
D	81	41%
E	69	35%
F	57	29%
G	45	23%

Maximum mark: 200.

Extended · Papers 22, 42, 52

Grade	Min mark	Min %
A*	163	82%
A	138	69%
B	113	57%
C	89	45%
D	76	38%
E	63	32%
F	52	26%
G	41	21%

Maximum mark: 200.

Extended · Papers 23, 43, 53

Grade	Min mark	Min %
A*	164	82%
A	140	70%
B	116	58%
C	92	46%
D	79	40%
E	66	33%
F	55	28%
G	44	22%

Maximum mark: 200.

Extended · Papers 21, 41, 61

Grade	Min mark	Min %
A*	163	82%
A	140	70%
B	117	59%
C	95	48%
D	82	41%
E	70	35%
F	58	29%
G	46	23%

Maximum mark: 200.

Extended · Papers 22, 42, 62

Grade	Min mark	Min %
A*	164	82%
A	139	70%
B	114	57%
C	89	45%
D	76	38%
E	63	32%
F	52	26%
G	41	21%

Maximum mark: 200.

Extended · Papers 23, 43, 63

Grade	Min mark	Min %
A*	163	82%
A	139	70%
B	115	58%
C	92	46%
D	79	40%
E	66	33%
F	55	28%
G	44	22%

Maximum mark: 200.

Core · Papers 11, 31, 51

Grade	Min mark	Min %
C	111	56%
D	96	48%
E	81	41%
F	65	33%
G	49	25%

Maximum mark: 200.

Core · Papers 12, 32, 52

Grade	Min mark	Min %
C	114	57%
D	99	50%
E	85	43%
F	72	36%
G	59	30%

Maximum mark: 200.

Core · Papers 13, 33, 53

Grade	Min mark	Min %
C	114	57%
D	98	49%
E	83	42%
F	68	34%
G	53	27%

Maximum mark: 200.

Core · Papers 11, 31, 61

Grade	Min mark	Min %
C	112	57%
D	97	49%
E	82	41%
F	66	33%
G	50	25%

Maximum mark: 200.

Core · Papers 12, 32, 62

Grade	Min mark	Min %
C	114	57%
D	99	50%
E	85	43%
F	72	36%
G	59	30%

Maximum mark: 200.

Core · Papers 13, 33, 63

Grade	Min mark	Min %
C	114	57%
D	98	49%
E	83	42%
F	68	34%
G	53	27%

Maximum mark: 200.

Calculate your Biology grade →

Official source (PDF) →

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