IB Chemistry Grade Boundaries

Chemistry Grade Boundaries

View IB Chemistry grade boundaries over time for HL and SL. Understand score trends and how marks convert into final IB grades.

Grade boundaries explain how raw exam marks are converted into final IB grades from 1 to 7 and are adjusted each session to reflect exam difficulty and global student performance.

By reviewing grade boundaries over time, students and teachers can better understand expectations, identify trends, and set more accurate performance targets.

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Grade Boundaries Over Time

Detailed Boundaries

Session	7	6	5	4	3	2
M25	77	64	52	40	27	15
N24	77	64	52	40	27	16
M24	76	64	52	40	27	16
N23	76	64	52	40	27	16
M23	77	65	53	41	30	17
N22	72	60	50	39	24	13
M22	73	61	48	36	24	11
M21	73	56	42	31	15	5
N20	78	67	56	45	31	17
N19	77	66	54	43	31	16
M19	79	67	55	44	32	17

Chemistry Grade Boundaries

Grade Boundaries Over Time

Detailed Boundaries

Frequently Asked Questions

Are IB Chemistry grade boundaries the same every year?

Do Higher Level Chemistry and Standard Level Chemistry share the same boundaries?

Should I aim exactly for the grade boundary?

Can grade boundaries predict my final grade?

Session	7	6	5	4	3	2
M25	77	64	52	40	27	15
N24	77	64	52	40	27	16
M24	76	64	52	40	27	16
N23	76	64	52	40	27	16
M23	77	65	53	41	30	17
N22	72	60	50	39	24	13
M22	73	61	48	36	24	11
M21	73	56	42	31	15	5
N20	78	67	56	45	31	17
N19	77	66	54	43	31	16
M19	79	67	55	44	32	17

Session	7	6	5	4	3	2
M25	77	64	52	40	27	15
N24	77	64	52	40	27	16
M24	76	64	52	40	27	16
N23	76	64	52	40	27	16
M23	77	65	53	41	30	17
N22	72	60	50	39	24	13
M22	73	61	48	36	24	11
M21	73	56	42	31	15	5
N20	78	67	56	45	31	17
N19	77	66	54	43	31	16
M19	79	67	55	44	32	17

Session	7	6	5	4	3	2
M25	77	64	52	40	27	15
N24	77	64	52	40	27	16
M24	76	64	52	40	27	16
N23	76	64	52	40	27	16
M23	77	65	53	41	30	17
N22	72	60	50	39	24	13
M22	73	61	48	36	24	11
M21	73	56	42	31	15	5
N20	78	67	56	45	31	17
N19	77	66	54	43	31	16
M19	79	67	55	44	32	17