Edexcel A-level Biology grade boundaries by year
Edexcel A-level Biology A (Salters-Nuffield)
The A boundary has ranged from 52% to 67%
Lowest in 2022, highest in 2025. June 2026: 196 out of 300.
- A
- Other grades
2027 exams
- Mon 7 JunPaper 1: The Natural Environment and Species SurvivalAfternoon
- Mon 14 JunPaper 2: Energy, Exercise and Co-ordinationAfternoon
- Fri 18 JunPaper 3: General and Practical Applications in BiologyMorning
Questions people ask
What was the A boundary for Edexcel A-level Biology in 2026?
196 out of 300 (65%) for Biology A (Salters-Nuffield). Since 2017 it has been as low as 52% (2022) and as high as 67% (2025).
When are the Edexcel A-level Biology exams in 2027?
For Biology A (Salters-Nuffield), the first paper is on Monday 7 June 2027 and the last on Friday 18 June 2027.
Why do grade boundaries change every year?
Each year's papers are different, so the board moves the boundaries to keep a grade worth the same. A harder paper gets lower boundaries.
More free tools
How we work this out
What it does
Every June Edexcel A-level Biology grade boundary from 2017 to 2026 as a percentage, and the 2027 exam dates.
Edexcel A-level Biology: the board's published June qualification boundaries from 2017 to 2026. No summer exams were sat in 2020 or 2021.
Method
- Each boundary is the published mark divided by the qualification's total marks that June.
- The range is the lowest and highest of those percentages across the years shown, rounded to the nearest whole percent.
- Where the board sets different boundaries for different option papers, each option has its own line.