A-Level Biology Grade Calculator
Enter your marks across the three AQA A-Level Biology papers to estimate your grade. Boundaries based on typical recent exam sessions.
| Grade | Marks (out of 260) | Percentage |
|---|---|---|
| A* | 205+ | 79%+ |
| A | 175 – 204 | 67% – 78% |
| B | 145 – 174 | 56% – 66% |
| C | 120 – 144 | 46% – 55% |
| D | 95 – 119 | 37% – 45% |
| E | 70 – 94 | 27% – 36% |
| U | 0 – 69 | 0% – 26% |
Typical recent boundaries for AQA A-Level Biology (7402). Boundaries shift by ~5 marks per year.
What's in A-Level Biology?
AQA A-Level Biology (7402) is assessed through three papers across eight topic areas. Papers 1 and 2 are 2-hour written exams testing content across topics 1–4 and 5–8 respectively. Paper 3 is the synoptic paper with a 25-mark essay at the end. Practical skills are assessed through written questions — there is no separate practical exam, but you must complete 12 Required Practicals during the course.
Paper 1: Topics 1–4 (91 marks)
Biological molecules, cells, organisms exchange substances with their environment, genetic information and variation. Mix of short-answer, calculation and extended-response questions. Question styles include data interpretation from unfamiliar experiments.
Paper 2: Topics 5–8 (91 marks)
Energy transfers in and between organisms, organisms respond to changes, genetics and populations, control of gene expression. More focus on essay-style application and synoptic thinking than Paper 1.
Paper 3: Synoptic + 25-mark essay (78 marks)
Can test any content from the full specification. Structured practical and data questions worth 53 marks, plus a choice-of-two 25-mark essay. The essay is where most A-grade students drop marks — it requires linking content across multiple topics coherently.
Where A-Level Biology Students Lose Marks
Three patterns we see at Think Smart Academy: weak exam technique on 6-mark questions (students write content but fail to answer the command word), lost marks on statistical tests in Paper 3 (chi-squared, Student's t-test, standard deviation), and the Paper 3 essay scoring below 15/25. If your paper breakdown shows Paper 3 trailing the others by 10+ marks, the essay is almost certainly where the grade is sitting.
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