What was the grade C boundary for Edexcel A-level Biology in June 2025?

In June 2025, Biology: 132 out of 300; Biology (Salters Nuffield): 146 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.

Biology

Name: Edexcel A-level Biology grade boundaries, June 2025
Creator: Pearson Education Ltd

Edexcel A-level · June 2025 ·2 awards

3000217A*188A160B132C105D78E

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.

Award

Your total markof 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.

Award	Code	Max	A*	A	B	C	D	E	U
Biology	`9BI0`	300	21772	18863	16053	13244	10535	7826	00
Biology (Salters Nuffield)	`9BN0`	300	22575	20067	17358	14649	11940	9231	00

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.

Which award did you sit?

Paper 1

/ 90

Paper 2

/ 90

Paper 3

/ 120

Grade	Needs	From what's left	Verdict

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.

Board	Award	Code	Max	A*	A	B	C	D	E	U
Edexcel	Biology	`9BI0`	300	21772	18863	16053	13244	10535	7826	00
AQA	Biology	`7402`	260	19274	16563	13953	11343	8834	6324	—
OCR	Biology	`H420`	270	18769	16160	13751	11342	9033	6725	00

All 1 AQA award →All 2 OCR awards →

Other series

June 2026 June 2024

Questions

What was the grade C boundary for Edexcel A-level Biology in June 2025?: In June 2025, Biology: 132 out of 300; Biology (Salters Nuffield): 146 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.