IGCSE Combined Science (0653) grade boundaries — November 2024

Cambridge IGCSE (CAIE) (0653). The official grade thresholds for the November 2024 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 2024 at a glance

A A* in Combined Science required 152/200 (76%) on extended · papers 21, 41, 51.
That A* threshold is 3 marks higher than June 2024 — slightly harder to achieve.
Across paper variants, the A* boundary ranged from 151 to 155 marks — variant choice mattered this session.
A grade C needed roughly 40% on extended · papers 21, 41, 51.

Extended · Papers 21, 41, 51

Grade	Min mark	Min %
A*	152	76%
A	128	64%
B	104	52%
C	80	40%
D	68	34%
E	57	29%
F	47	24%
G	37	19%

Maximum mark: 200.

Extended · Papers 22, 42, 52

Grade	Min mark	Min %
A*	155	78%
A	131	66%
B	107	54%
C	83	42%
D	71	36%
E	60	30%
F	50	25%
G	40	20%

Maximum mark: 200.

Extended · Papers 21, 41, 61

Grade	Min mark	Min %
A*	151	76%
A	127	64%
B	103	52%
C	79	40%
D	68	34%
E	57	29%
F	47	24%
G	37	19%

Maximum mark: 200.

Extended · Papers 22, 42, 62

Grade	Min mark	Min %
A*	154	77%
A	130	65%
B	106	53%
C	82	41%
D	71	36%
E	60	30%
F	50	25%
G	40	20%

Maximum mark: 200.

Extended · Papers 23, 43, 63

Grade	Min mark	Min %
A*	151	76%
A	127	64%
B	103	52%
C	79	40%
D	68	34%
E	57	29%
F	47	24%
G	37	19%

Maximum mark: 200.

Core · Papers 11, 31, 51

Grade	Min mark	Min %
C	98	49%
D	84	42%
E	70	35%
F	55	28%
G	40	20%

Maximum mark: 200.

Core · Papers 12, 32, 52

Grade	Min mark	Min %
C	94	47%
D	80	40%
E	67	34%
F	54	27%
G	41	21%

Maximum mark: 200.

Core · Papers 11, 31, 61

Grade	Min mark	Min %
C	97	49%
D	83	42%
E	70	35%
F	55	28%
G	40	20%

Maximum mark: 200.

Core · Papers 12, 32, 62

Grade	Min mark	Min %
C	93	47%
D	80	40%
E	67	34%
F	54	27%
G	41	21%

Maximum mark: 200.

Core · Papers 13, 33, 63

Grade	Min mark	Min %
C	93	47%
D	80	40%
E	67	34%
F	54	27%
G	41	21%

Maximum mark: 200.

Extended · Papers 50

Grade	Min mark	Min %
A*	78	87%
A	68	76%
B	58	65%
C	48	54%
D	39	44%
E	31	35%
F	22	25%
G	13	15%

Maximum mark: 90.

Calculate your Combined Science grade →

Official source (PDF) →

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