IGCSE Chemistry (9-1) 0971 grade boundaries — June 2025

Cambridge IGCSE (CAIE) (0971). The official grade thresholds for the June 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.

June 2025 at a glance

A 9 in Chemistry (9-1) required 9/9 (100%) on option mark after.
That 9 threshold is unchanged from November 2024.
A grade 4 needed roughly 45% on option mark after.

Option mark after

Grade	Min mark	Min %
9	9	100%
8	8	89%
7	7	78%
6	6	67%
5	5	56%
4	4	45%
3	3	34%
2	2	23%
1	1	12%

Maximum mark: 9.

Papers 21, 41, 51

Grade	Min mark	Min %
9	172	86%
8	157	79%
7	143	72%
6	124	62%
5	106	53%
4	88	44%
3	72	36%
2	56	29%
1	41	21%

Maximum mark: 200.

Papers 21, 41, 61

Grade	Min mark	Min %
9	174	87%
8	159	80%
7	145	73%
6	126	63%
5	107	54%
4	88	44%
3	73	37%
2	58	29%
1	43	22%

Maximum mark: 200.

Papers 22, 42, 62

Grade	Min mark	Min %
9	173	87%
8	159	80%
7	146	73%
6	127	64%
5	108	54%
4	89	45%
3	73	37%
2	58	29%
1	43	22%

Maximum mark: 200.

Papers 11, 31, 51

Grade	Min mark	Min %
5	124	62%
4	106	53%
3	82	41%
2	58	29%
1	35	18%

Maximum mark: 200.

Papers 11, 31, 61

Grade	Min mark	Min %
5	123	62%
4	106	53%
3	83	42%
2	60	30%
1	37	19%

Maximum mark: 200.

Papers 12, 32, 62

Grade	Min mark	Min %
5	126	63%
4	110	56%
3	88	44%
2	66	33%
1	45	23%

Maximum mark: 200.

Calculate your Chemistry (9-1) grade →

Official source (PDF) →

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