Grade boundaries

Edexcel International GCSE (9–1) Chemistry 4CH1 grade boundaries

The newest summer series is shown first. Type a mark to see its grade, or choose another tier, series or paper.

Level

Subject

Board

Course

Boundaries

Whole subject or paper

Mark

Out of

Type a mark to see its grade.

The boundaries

June 2026 · whole subject

Grade	Needs
9	150 of 180
8	130 of 180
7	111 of 180
6	99 of 180
5	88 of 180
4	77 of 180
3	61 of 180
2	46 of 180
1	31 of 180

Every course·Mock grade calculator

Marks for each grade in June 2026

In total (1C 2C)

141 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 9 in June 2026.
122 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 8 in June 2026.
103 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 7 in June 2026.
90 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 6 in June 2026.
78 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 5 in June 2026.
66 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 4 in June 2026.
53 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 3 in June 2026.
41 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 2 in June 2026.
29 out of 180 on Edexcel 4CH1 (1C 2C) in total was a grade 1 in June 2026.

In total (1CR 2CR)

150 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 9 in June 2026.
130 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 8 in June 2026.
111 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 7 in June 2026.
99 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 6 in June 2026.
88 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 5 in June 2026.
77 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 4 in June 2026.
61 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 3 in June 2026.
46 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 2 in June 2026.
31 out of 180 on Edexcel 4CH1 (1CR 2CR) in total was a grade 1 in June 2026.

Every paper in June 2026

Every series

15 series, newest first. Each mark is the least that reaches the grade, out of the total under the column’s name.

June 2026

From Edexcel’s grade boundaries for June 2026: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	141	150	83	85	58	65
8	122	130	72	74	49	56
7	103	111	62	64	41	47
6	90	99	55	57	35	42
5	78	88	48	51	30	37
4	66	77	41	45	25	32
3	53	61	33	36	20	25
2	41	46	25	27	15	18
1	29	31	18	19	11	12

November 2025

From Edexcel’s grade boundaries for November 2025: the board’s document.

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	136	82	54
8	114	68	45
7	92	55	37
6	79	48	31
5	67	41	25
4	55	35	20
3	43	28	15
2	32	21	11
1	21	14	7

June 2025

From Edexcel’s grade boundaries for June 2025: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	151	154	89	89	62	65
8	134	136	79	79	55	57
7	117	119	69	69	48	50
6	104	106	62	62	42	44
5	91	93	55	55	36	38
4	79	81	48	48	31	33
3	62	64	38	38	24	26
2	45	47	28	28	17	19
1	29	31	18	19	11	12

November 2024

From Edexcel’s grade boundaries for November 2024: the board’s document.

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	155	96	59
8	135	84	51
7	115	72	43
6	100	63	37
5	85	54	31
4	71	45	26
3	55	35	20
2	40	25	15
1	25	15	10

June 2024

From Edexcel’s grade boundaries for June 2024: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	146	147	86	87	60	60
8	127	127	75	74	52	53
7	109	107	64	61	45	46
6	96	94	56	54	39	40
5	83	81	48	47	34	34
4	70	69	41	40	29	29
3	55	54	32	31	23	23
2	41	39	24	22	17	17
1	27	24	16	13	11	11

November 2023

From Edexcel’s grade boundaries for November 2023: the board’s document.

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	147	89	58
8	125	76	49
7	103	63	40
6	88	54	34
5	74	45	28
4	60	37	23
3	47	29	18
2	34	21	13
1	21	13	8

June 2023

From Edexcel’s grade boundaries for June 2023: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	145	143	87	84	58	59
8	123	120	74	71	49	49
7	101	98	61	58	40	40
6	87	84	52	50	34	34
5	73	71	44	42	28	28
4	59	58	36	35	23	23
3	46	45	28	27	18	18
2	33	33	20	20	13	13
1	21	21	13	13	8	8

January 2023

From Edexcel’s grade boundaries for January 2023: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	142	141	85	85	57	56
8	119	118	71	71	48	47
7	97	96	58	58	39	38
6	82	81	49	49	33	32
5	67	66	40	40	27	26
4	52	51	31	31	21	20
3	41	40	24	24	17	16
2	31	30	18	18	13	12
1	21	20	12	12	9	8

June 2022

From Edexcel’s grade boundaries for June 2022: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	140	136	88	82	56	51
8	117	112	73	68	46	42
7	95	88	58	54	37	34
6	80	74	49	45	31	29
5	65	61	40	37	25	24
4	51	48	31	29	20	19
3	41	38	24	23	16	15
2	31	28	18	17	12	11
1	21	18	12	11	9	7

January 2022

From Edexcel’s grade boundaries for January 2022: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	136	136	83	83	53	53
8	116	116	71	71	45	45
7	97	97	59	59	38	38
6	78	78	47	47	30	30
5	59	59	35	35	23	23
4	40	40	24	24	16	16
3	30	30	18	18	12	12
2	21	21	12	12	8	8
1	12	12	7	7	5	5

November 2021

From Edexcel’s grade boundaries for November 2021: the board’s document.

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	136	83	53
8	116	71	45
7	97	59	38
6	78	47	30
5	59	35	23
4	40	24	16
3	30	18	12
2	21	12	8
1	12	7	5

January 2021

From Edexcel’s grade boundaries for January 2021: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	137	148	81	86	56	62
8	115	129	68	74	47	54
7	93	110	55	63	38	47
6	72	92	42	52	29	40
5	51	74	29	41	21	33
4	30	57	17	31	13	26
3	24	46	14	25	10	21
2	19	35	11	19	8	16
1	14	25	8	14	6	11

November 2020

From Edexcel’s grade boundaries for November 2020: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	137	143	81	86	56	59
8	115	124	68	74	47	50
7	93	105	55	63	38	42
6	72	88	42	52	29	35
5	51	71	29	41	21	29
4	30	54	17	31	13	23
3	24	43	14	25	10	18
2	19	32	11	19	8	13
1	14	22	8	14	6	8

January 2020

From Edexcel’s grade boundaries for January 2020: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	162	159	103	96	63	59
8	149	143	94	87	57	54
7	137	128	85	79	52	49
6	122	113	75	70	46	43
5	107	98	65	61	41	37
4	92	84	56	52	36	32
3	75	69	46	43	29	26
2	59	54	36	34	22	20
1	43	40	27	25	16	15

June 2019

From Edexcel’s grade boundaries for June 2019: the board’s document.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	143	152	84	87	59	65
8	126	134	74	77	52	57
7	109	117	64	67	45	50
6	98	106	57	60	40	46
5	87	95	50	53	36	42
4	76	85	44	46	32	39
3	62	69	36	38	26	31
2	48	53	28	30	20	23
1	35	38	21	22	14	16

Questions

Which series of Edexcel International GCSE (9–1) Chemistry 4CH1 grade boundaries are there?

15 series, from June 2019 to June 2026: June 2026, November 2025, June 2025, November 2024, June 2024, November 2023, June 2023, January 2023, June 2022, January 2022, November 2021, January 2021, November 2020, January 2020 and June 2019.

Chemistry at other boards

Other Edexcel International GCSE courses

A series, or the safe rule

A paper is graded against the boundaries of the series it was sat in. Choose that series and the grade is the one the board’s boundaries gave that sitting. Where a series published more than one set of boundaries for the whole subject, one for each combination of papers, each grade takes the highest of them, and the line under the grade says so.

The safe rule is for a mark with no series of its own, such as a mock. For each grade it takes the highest boundary in the board’s most recent summer series, up to three of them and leaving out 2020 to 2022, or the course’s main series where it has no summer one. A grade it gives would have been enough in each of them. The line under the grade names the series it counted.

In the app you log a paper in one line, or question by question where asterisk has its questions, and each grade comes from these same boundaries. Open the app.

Not here

CCEA, AS level, IB and AP: the app holds no grade boundaries for them, so they are not offered.

Where these numbers come from

Boards publish their grade boundaries after each series, and that is all this page holds: each grade’s boundary mark and what the subject or paper is out of, as the board printed them. The papers stay on the boards’ own sites; nothing here reproduces a question or a mark scheme.

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	141	150	83	85	58	65
8	122	130	72	74	49	56
7	103	111	62	64	41	47
6	90	99	55	57	35	42
5	78	88	48	51	30	37
4	66	77	41	45	25	32
3	53	61	33	36	20	25
2	41	46	25	27	15	18
1	29	31	18	19	11	12

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	136	82	54
8	114	68	45
7	92	55	37
6	79	48	31
5	67	41	25
4	55	35	20
3	43	28	15
2	32	21	11
1	21	14	7

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	151	154	89	89	62	65
8	134	136	79	79	55	57
7	117	119	69	69	48	50
6	104	106	62	62	42	44
5	91	93	55	55	36	38
4	79	81	48	48	31	33
3	62	64	38	38	24	26
2	45	47	28	28	17	19
1	29	31	18	19	11	12

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	155	96	59
8	135	84	51
7	115	72	43
6	100	63	37
5	85	54	31
4	71	45	26
3	55	35	20
2	40	25	15
1	25	15	10

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	146	147	86	87	60	60
8	127	127	75	74	52	53
7	109	107	64	61	45	46
6	96	94	56	54	39	40
5	83	81	48	47	34	34
4	70	69	41	40	29	29
3	55	54	32	31	23	23
2	41	39	24	22	17	17
1	27	24	16	13	11	11

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	147	89	58
8	125	76	49
7	103	63	40
6	88	54	34
5	74	45	28
4	60	37	23
3	47	29	18
2	34	21	13
1	21	13	8

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	145	143	87	84	58	59
8	123	120	74	71	49	49
7	101	98	61	58	40	40
6	87	84	52	50	34	34
5	73	71	44	42	28	28
4	59	58	36	35	23	23
3	46	45	28	27	18	18
2	33	33	20	20	13	13
1	21	21	13	13	8	8

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	142	141	85	85	57	56
8	119	118	71	71	48	47
7	97	96	58	58	39	38
6	82	81	49	49	33	32
5	67	66	40	40	27	26
4	52	51	31	31	21	20
3	41	40	24	24	17	16
2	31	30	18	18	13	12
1	21	20	12	12	9	8

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	140	136	88	82	56	51
8	117	112	73	68	46	42
7	95	88	58	54	37	34
6	80	74	49	45	31	29
5	65	61	40	37	25	24
4	51	48	31	29	20	19
3	41	38	24	23	16	15
2	31	28	18	17	12	11
1	21	18	12	11	9	7

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	136	136	83	83	53	53
8	116	116	71	71	45	45
7	97	97	59	59	38	38
6	78	78	47	47	30	30
5	59	59	35	35	23	23
4	40	40	24	24	16	16
3	30	30	18	18	12	12
2	21	21	12	12	8	8
1	12	12	7	7	5	5

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	141	150	83	85	58	65
8	122	130	72	74	49	56
7	103	111	62	64	41	47
6	90	99	55	57	35	42
5	78	88	48	51	30	37
4	66	77	41	45	25	32
3	53	61	33	36	20	25
2	41	46	25	27	15	18
1	29	31	18	19	11	12

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	136	82	54
8	114	68	45
7	92	55	37
6	79	48	31
5	67	41	25
4	55	35	20
3	43	28	15
2	32	21	11
1	21	14	7

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	151	154	89	89	62	65
8	134	136	79	79	55	57
7	117	119	69	69	48	50
6	104	106	62	62	42	44
5	91	93	55	55	36	38
4	79	81	48	48	31	33
3	62	64	38	38	24	26
2	45	47	28	28	17	19
1	29	31	18	19	11	12

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	155	96	59
8	135	84	51
7	115	72	43
6	100	63	37
5	85	54	31
4	71	45	26
3	55	35	20
2	40	25	15
1	25	15	10

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	146	147	86	87	60	60
8	127	127	75	74	52	53
7	109	107	64	61	45	46
6	96	94	56	54	39	40
5	83	81	48	47	34	34
4	70	69	41	40	29	29
3	55	54	32	31	23	23
2	41	39	24	22	17	17
1	27	24	16	13	11	11

Grade	Whole subjectout of 180	4CH1/1Cout of 110	4CH1/2Cout of 70
9	147	89	58
8	125	76	49
7	103	63	40
6	88	54	34
5	74	45	28
4	60	37	23
3	47	29	18
2	34	21	13
1	21	13	8

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	145	143	87	84	58	59
8	123	120	74	71	49	49
7	101	98	61	58	40	40
6	87	84	52	50	34	34
5	73	71	44	42	28	28
4	59	58	36	35	23	23
3	46	45	28	27	18	18
2	33	33	20	20	13	13
1	21	21	13	13	8	8

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	142	141	85	85	57	56
8	119	118	71	71	48	47
7	97	96	58	58	39	38
6	82	81	49	49	33	32
5	67	66	40	40	27	26
4	52	51	31	31	21	20
3	41	40	24	24	17	16
2	31	30	18	18	13	12
1	21	20	12	12	9	8

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	140	136	88	82	56	51
8	117	112	73	68	46	42
7	95	88	58	54	37	34
6	80	74	49	45	31	29
5	65	61	40	37	25	24
4	51	48	31	29	20	19
3	41	38	24	23	16	15
2	31	28	18	17	12	11
1	21	18	12	11	9	7

Grade	Whole subject (1C 2C)out of 180	Whole subject (1CR 2CR)out of 180	4CH1/1Cout of 110	4CH1/1CRout of 110	4CH1/2Cout of 70	4CH1/2CRout of 70
9	136	136	83	83	53	53
8	116	116	71	71	45	45
7	97	97	59	59	38	38
6	78	78	47	47	30	30
5	59	59	35	35	23	23
4	40	40	24	24	16	16
3	30	30	18	18	12	12
2	21	21	12	12	8	8
1	12	12	7	7	5	5