Grade boundaries

Edexcel International GCSE (9–1) Mathematics B 4MB1 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	262 of 300
8	223 of 300
7	185 of 300
6	154 of 300
5	124 of 300
4	94 of 300
3	79 of 300

Every course·Mock grade calculator

Marks for each grade in June 2026

In total (01 02)

246 out of 300 on Edexcel 4MB1 (01 02) in total was a grade 9 in June 2026.
209 out of 300 on Edexcel 4MB1 (01 02) in total was a grade 8 in June 2026.
173 out of 300 on Edexcel 4MB1 (01 02) in total was a grade 7 in June 2026.
142 out of 300 on Edexcel 4MB1 (01 02) in total was a grade 6 in June 2026.
112 out of 300 on Edexcel 4MB1 (01 02) in total was a grade 5 in June 2026.
82 out of 300 on Edexcel 4MB1 (01 02) in total was a grade 4 in June 2026.
67 out of 300 on Edexcel 4MB1 (01 02) in total was a grade 3 in June 2026.

In total (01R 02R)

262 out of 300 on Edexcel 4MB1 (01R 02R) in total was a grade 9 in June 2026.
223 out of 300 on Edexcel 4MB1 (01R 02R) in total was a grade 8 in June 2026.
185 out of 300 on Edexcel 4MB1 (01R 02R) in total was a grade 7 in June 2026.
154 out of 300 on Edexcel 4MB1 (01R 02R) in total was a grade 6 in June 2026.
124 out of 300 on Edexcel 4MB1 (01R 02R) in total was a grade 5 in June 2026.
94 out of 300 on Edexcel 4MB1 (01R 02R) in total was a grade 4 in June 2026.
79 out of 300 on Edexcel 4MB1 (01R 02R) in total was a grade 3 in June 2026.

Every paper in June 2026

Every series

17 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 (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	246	262	82	88	82	87
8	209	223	69	74	70	74
7	173	185	57	61	58	62
6	142	154	47	51	47	51
5	112	124	37	41	37	41
4	82	94	28	32	27	31
3	67	79	23	27	22	26

November 2025

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

Grade	Whole subjectout of 300	4MB1/01out of 100	4MB1/02out of 100
9	247	83	82
8	211	70	70
7	176	58	59
6	145	48	48
5	114	38	38
4	84	28	28
3	69	23	23

June 2025

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	255	237	85	79	85	79
8	216	196	72	67	72	64
7	178	155	60	55	59	50
6	143	127	48	44	47	41
5	108	99	36	34	36	32
4	74	72	24	24	25	24
3	57	58	18	19	19	20

November 2024

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

Grade	Whole subjectout of 300	4MB1/01out of 100	4MB1/02out of 100
9	240	78	81
8	200	65	67
7	160	52	54
6	133	43	45
5	107	34	36
4	81	25	28
3	68	20	24

June 2024

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	246	244	82	82	82	81
8	205	204	68	69	68	67
7	165	164	55	56	55	54
6	134	133	44	45	45	44
5	104	102	34	34	35	34
4	74	72	24	24	25	24
3	59	57	19	19	20	19

November 2023

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

Grade	Whole subjectout of 300	4MB1/01out of 100	4MB1/02out of 100
9	231	77	77
8	189	63	63
7	148	50	49
6	123	40	41
5	98	31	33
4	74	22	26
3	62	17	22

June 2023

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	231	231	77	75	77	78
8	189	189	63	62	63	63
7	148	148	50	50	49	49
6	122	122	41	41	40	40
5	96	97	32	32	32	32
4	71	72	23	24	24	24
3	58	59	18	20	20	20

January 2023

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	185	189	61	61	62	64
8	146	150	49	49	48	50
7	108	112	38	38	35	37
6	87	90	30	30	28	29
5	66	68	23	23	21	22
4	46	46	16	16	15	15
3	36	35	12	12	12	11

June 2022

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	185	227	64	74	59	78
8	146	181	51	59	47	62
7	108	136	38	44	35	46
6	87	110	30	36	28	37
5	66	85	23	28	21	28
4	46	60	16	20	15	20
3	36	47	12	16	12	16

January 2022

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	196	196	66	64	65	66
8	155	157	52	51	51	53
7	114	118	38	38	38	40
6	84	87	28	28	28	29
5	55	56	19	19	18	18
4	26	26	10	10	8	8
3	11	11	5	5	3	3

November 2021

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

Grade	Whole subjectout of 300	4MB1/1out of 100	4MB1/2out of 100
9	196	66	65
8	155	52	51
7	114	38	38
6	84	28	28
5	55	19	18
4	26	10	8
3	11	6	5
2	–	3	2

January 2021

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	197	231	65	77	66	77
8	156	186	52	61	52	62
7	115	142	39	46	38	48
6	86	106	29	34	28	36
5	57	71	19	23	18	24
4	28	36	10	12	9	12
3	13	18	5	6	4	6

November 2020

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	196	231	64	77	66	77
8	155	186	51	61	52	62
7	114	142	38	46	38	48
6	84	106	28	34	28	36
5	55	71	18	23	18	24
4	26	36	8	12	9	12
3	11	18	3	6	4	6

January 2020

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	244	241	81	81	81	80
8	210	208	70	70	70	69
7	177	175	59	59	59	58
6	144	142	48	48	48	47
5	111	109	37	37	37	36
4	78	77	26	27	26	25
3	61	61	20	22	20	19

June 2019

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	245	245	81	85	78	85
8	204	211	68	72	66	72
7	164	177	56	59	54	59
6	134	143	45	47	44	47
5	104	109	34	36	34	36
4	74	75	24	25	25	25
3	59	58	19	19	20	19

January 2019

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

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	216	231	74	74	74	75
8	190	199	64	64	64	65
7	165	167	55	55	55	56
6	133	134	44	44	44	45
5	101	101	33	33	33	34
4	69	69	23	23	23	23
3	53	53	18	18	18	17

June 2018

From Edexcel’s grade boundaries for June 2018: the board’s document.

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	216	230	74	75	74	74
8	190	198	64	65	64	64
7	165	166	55	56	55	55
6	132	133	44	45	44	44
5	99	101	33	34	33	33
4	67	69	23	23	22	23
3	51	53	18	17	16	18

Questions

Which series of Edexcel International GCSE (9–1) Mathematics B 4MB1 grade boundaries are there?

17 series, from June 2018 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, June 2019, January 2019 and June 2018.

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 (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	246	262	82	88	82	87
8	209	223	69	74	70	74
7	173	185	57	61	58	62
6	142	154	47	51	47	51
5	112	124	37	41	37	41
4	82	94	28	32	27	31
3	67	79	23	27	22	26

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	255	237	85	79	85	79
8	216	196	72	67	72	64
7	178	155	60	55	59	50
6	143	127	48	44	47	41
5	108	99	36	34	36	32
4	74	72	24	24	25	24
3	57	58	18	19	19	20

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	246	244	82	82	82	81
8	205	204	68	69	68	67
7	165	164	55	56	55	54
6	134	133	44	45	45	44
5	104	102	34	34	35	34
4	74	72	24	24	25	24
3	59	57	19	19	20	19

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	231	231	77	75	77	78
8	189	189	63	62	63	63
7	148	148	50	50	49	49
6	122	122	41	41	40	40
5	96	97	32	32	32	32
4	71	72	23	24	24	24
3	58	59	18	20	20	20

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	185	189	61	61	62	64
8	146	150	49	49	48	50
7	108	112	38	38	35	37
6	87	90	30	30	28	29
5	66	68	23	23	21	22
4	46	46	16	16	15	15
3	36	35	12	12	12	11

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	185	227	64	74	59	78
8	146	181	51	59	47	62
7	108	136	38	44	35	46
6	87	110	30	36	28	37
5	66	85	23	28	21	28
4	46	60	16	20	15	20
3	36	47	12	16	12	16

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	196	196	66	64	65	66
8	155	157	52	51	51	53
7	114	118	38	38	38	40
6	84	87	28	28	28	29
5	55	56	19	19	18	18
4	26	26	10	10	8	8
3	11	11	5	5	3	3

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	197	231	65	77	66	77
8	156	186	52	61	52	62
7	115	142	39	46	38	48
6	86	106	29	34	28	36
5	57	71	19	23	18	24
4	28	36	10	12	9	12
3	13	18	5	6	4	6

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	196	231	64	77	66	77
8	155	186	51	61	52	62
7	114	142	38	46	38	48
6	84	106	28	34	28	36
5	55	71	18	23	18	24
4	26	36	8	12	9	12
3	11	18	3	6	4	6

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	244	241	81	81	81	80
8	210	208	70	70	70	69
7	177	175	59	59	59	58
6	144	142	48	48	48	47
5	111	109	37	37	37	36
4	78	77	26	27	26	25
3	61	61	20	22	20	19

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	246	262	82	88	82	87
8	209	223	69	74	70	74
7	173	185	57	61	58	62
6	142	154	47	51	47	51
5	112	124	37	41	37	41
4	82	94	28	32	27	31
3	67	79	23	27	22	26

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	255	237	85	79	85	79
8	216	196	72	67	72	64
7	178	155	60	55	59	50
6	143	127	48	44	47	41
5	108	99	36	34	36	32
4	74	72	24	24	25	24
3	57	58	18	19	19	20

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	246	244	82	82	82	81
8	205	204	68	69	68	67
7	165	164	55	56	55	54
6	134	133	44	45	45	44
5	104	102	34	34	35	34
4	74	72	24	24	25	24
3	59	57	19	19	20	19

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	231	231	77	75	77	78
8	189	189	63	62	63	63
7	148	148	50	50	49	49
6	122	122	41	41	40	40
5	96	97	32	32	32	32
4	71	72	23	24	24	24
3	58	59	18	20	20	20

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	185	189	61	61	62	64
8	146	150	49	49	48	50
7	108	112	38	38	35	37
6	87	90	30	30	28	29
5	66	68	23	23	21	22
4	46	46	16	16	15	15
3	36	35	12	12	12	11

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	185	227	64	74	59	78
8	146	181	51	59	47	62
7	108	136	38	44	35	46
6	87	110	30	36	28	37
5	66	85	23	28	21	28
4	46	60	16	20	15	20
3	36	47	12	16	12	16

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	196	196	66	64	65	66
8	155	157	52	51	51	53
7	114	118	38	38	38	40
6	84	87	28	28	28	29
5	55	56	19	19	18	18
4	26	26	10	10	8	8
3	11	11	5	5	3	3

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	197	231	65	77	66	77
8	156	186	52	61	52	62
7	115	142	39	46	38	48
6	86	106	29	34	28	36
5	57	71	19	23	18	24
4	28	36	10	12	9	12
3	13	18	5	6	4	6

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	196	231	64	77	66	77
8	155	186	51	61	52	62
7	114	142	38	46	38	48
6	84	106	28	34	28	36
5	55	71	18	23	18	24
4	26	36	8	12	9	12
3	11	18	3	6	4	6

Grade	Whole subject (01 02)out of 300	Whole subject (01R 02R)out of 300	4MB1/01out of 100	4MB1/01Rout of 100	4MB1/02out of 100	4MB1/02Rout of 100
9	244	241	81	81	81	80
8	210	208	70	70	70	69
7	177	175	59	59	59	58
6	144	142	48	48	48	47
5	111	109	37	37	37	36
4	78	77	26	27	26	25
3	61	61	20	22	20	19