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Grade Boundary

Chemistry

Edexcel A-level · June 2025 ·1 award

3000246A*207A170B133C96D60E
Every boundary at its true height on the 300-mark scale.

Turn a mark into a grade

This is the total for the whole subject, not one paper. Working from paper marks? Use the paper calculator below.

of 300

Enter a mark to place it on the scale.

Every boundary published

Raw marks for the whole subject. The small figure under each is that mark as a percentage of the maximum — the only number that compares fairly across boards.

AwardCodeMaxA*ABCDEU
Chemistry9CH0300246822076917057133449632602000

Transcribed from Pearson Education Ltd, June 2025 (PDF), retrieved 2026-08-16.

Work back from your paper marks

Fill in what you already have and leave the rest blank. A blank box means not sat yet, which is not the same as a zero.

Paper 1

/ 90

Paper 2

/ 90

Paper 3

/ 120
GradeNeedsFrom what's leftVerdict

The same subject on other boards, June 2025

Raw marks are not comparable between boards, because the maximum marks differ. The percentage of the maximum is the only fair comparison — and it is usually closer than people expect.

BoardAwardCodeMaxA*ABCDEU
EdexcelChemistry9CH0300246822076917057133449632602000
AQAChemistry74053002398019766162541274293315920
OCRChemistryH432270243902137917565137519937612300

All 1 AQA award →All 2 OCR awards →

Other series

Questions

What was the grade C boundary for Edexcel A-level Chemistry in June 2025?
In June 2025, Chemistry: 133 out of 300.
Will the boundaries be the same next year?
No. Boards reset boundaries after every series so a grade means the same thing even when a paper is harder or easier than intended. Past boundaries tell you the likely range, not the answer.