IGCSE Chemistry grade boundaries — November 2025

Cambridge IGCSE (CAIE) (0620). Minimum raw marks for each grade in the November 2025 series, by tier and paper combination. Pick the option matching the papers you sat.

Extended · Papers 21, 41, 51

Grade	Min mark	Min %
A*	158	79%
A	132	66%
B	106	53%
C	80	40%
D	67	34%
E	54	27%
F	43	22%
G	32	16%

Maximum mark: 200.

Extended · Papers 22, 42, 52

Grade	Min mark	Min %
A*	153	77%
A	127	64%
B	101	51%
C	76	38%
D	63	32%
E	50	25%
F	39	20%
G	28	15%

Maximum mark: 200.

Extended · Papers 23, 43, 53

Grade	Min mark	Min %
A*	163	82%
A	137	69%
B	111	56%
C	85	43%
D	72	36%
E	60	30%
F	49	25%
G	38	19%

Maximum mark: 200.

Extended · Papers 21, 41, 61

Grade	Min mark	Min %
A*	159	80%
A	133	67%
B	107	54%
C	82	41%
D	69	35%
E	56	29%
F	45	23%
G	34	17%

Maximum mark: 200.

Extended · Papers 22, 42, 62

Grade	Min mark	Min %
A*	153	77%
A	127	64%
B	101	51%
C	76	38%
D	63	32%
E	51	26%
F	40	20%
G	29	15%

Maximum mark: 200.

Extended · Papers 23, 43, 63

Grade	Min mark	Min %
A*	163	82%
A	137	69%
B	111	56%
C	86	43%
D	73	37%
E	61	31%
F	50	25%
G	39	20%

Maximum mark: 200.

Core · Papers 12, 32, 52

Grade	Min mark	Min %
C	100	50%
D	84	42%
E	69	35%
F	53	27%
G	37	19%

Maximum mark: 200.

Core · Papers 13, 33, 53

Grade	Min mark	Min %
C	102	51%
D	86	43%
E	71	36%
F	56	29%
G	41	21%

Maximum mark: 200.

Core · Papers 11, 31, 61

Grade	Min mark	Min %
C	105	53%
D	89	45%
E	73	37%
F	58	29%
G	43	22%

Maximum mark: 200.

Core · Papers 12, 32, 62

Grade	Min mark	Min %
C	100	50%
D	85	43%
E	70	35%
F	54	27%
G	38	19%

Maximum mark: 200.

Core · Papers 13, 33, 63

Grade	Min mark	Min %
C	103	52%
D	87	44%
E	72	36%
F	57	29%
G	42	21%

Maximum mark: 200.

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