IGCSE Combined Science (0653) grade boundaries — June 2024

Cambridge IGCSE (CAIE) (0653). The official grade thresholds for the June 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.

June 2024 at a glance

A A* in Combined Science required 149/200 (75%) on extended · papers 21, 41, 51.
That A* threshold is 7 marks lower than March 2024 — slightly easier to achieve.
Across paper variants, the A* boundary ranged from 148 to 150 marks — variant choice mattered this session.
A grade C needed roughly 39% on extended · papers 21, 41, 51.

Extended · Papers 21, 41, 51

Grade	Min mark	Min %
A*	149	75%
A	125	63%
B	101	51%
C	77	39%
D	67	34%
E	58	29%
F	48	24%
G	38	19%

Maximum mark: 200.

Extended · Papers 22, 42, 52

Grade	Min mark	Min %
A*	148	74%
A	124	62%
B	100	50%
C	77	39%
D	66	33%
E	56	29%
F	47	24%
G	38	19%

Maximum mark: 200.

Extended · Papers 21, 41, 61

Grade	Min mark	Min %
A*	150	75%
A	126	63%
B	102	51%
C	78	39%
D	68	34%
E	58	29%
F	48	24%
G	38	19%

Maximum mark: 200.

Extended · Papers 22, 42, 62

Grade	Min mark	Min %
A*	149	75%
A	125	63%
B	101	51%
C	78	39%
D	67	34%
E	56	29%
F	47	24%
G	38	19%

Maximum mark: 200.

Extended · Papers 23, 43, 63

Grade	Min mark	Min %
A*	150	75%
A	126	63%
B	102	51%
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	93	47%
D	79	40%
E	65	33%
F	51	26%
G	37	19%

Maximum mark: 200.

Core · Papers 12, 32, 52

Grade	Min mark	Min %
C	90	45%
D	76	38%
E	63	32%
F	51	26%
G	39	20%

Maximum mark: 200.

Core · Papers 11, 31, 61

Grade	Min mark	Min %
C	94	47%
D	79	40%
E	65	33%
F	51	26%
G	37	19%

Maximum mark: 200.

Core · Papers 12, 32, 62

Grade	Min mark	Min %
C	91	46%
D	77	39%
E	63	32%
F	51	26%
G	39	20%

Maximum mark: 200.

Core · Papers 13, 33, 63

Grade	Min mark	Min %
C	91	46%
D	77	39%
E	63	32%
F	51	26%
G	39	20%

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.