A-Level Chemistry Grade Calculator
Enter your marks across the three AQA A-Level Chemistry papers to estimate your grade. Boundaries based on typical recent AQA exam sessions.
| Grade | Marks (out of 300) | Percentage |
|---|---|---|
| A* | 228+ | 76%+ |
| A | 198 – 227 | 66% – 75% |
| B | 165 – 197 | 55% – 65% |
| C | 135 – 164 | 45% – 54% |
| D | 105 – 134 | 35% – 44% |
| E | 75 – 104 | 25% – 34% |
| U | 0 – 74 | 0% – 24% |
Typical recent boundaries for AQA A-Level Chemistry (7405). Boundaries shift each year — A* commonly sits between 74% and 80%.
What's in A-Level Chemistry?
AQA A-Level Chemistry (7405) covers three strands: Physical Chemistry, Inorganic Chemistry and Organic Chemistry. The three papers test content differently — Paper 1 leans inorganic, Paper 2 leans organic, and both share physical content. Paper 3 is synoptic and features practical-focused questions. Practical skills are assessed through the written papers (required practicals) plus the separate CPAC practical endorsement.
Paper 1: Inorganic + Physical (105 marks)
Atomic structure, bonding, energetics, kinetics, equilibria, redox, period 3 and period 4 elements (inc. transition metals). Some calculation-heavy sections (Born-Haber cycles, equilibrium constants, pH).
Paper 2: Organic + Physical (105 marks)
Full organic chemistry (alkanes through aromatic compounds, polymers, amino acids, DNA) plus thermodynamics and rate equations from physical. Mechanism questions, synthesis routes and NMR spectroscopy are reliable scoring opportunities.
Paper 3: Synoptic + Practical (90 marks)
Practical techniques, synoptic questions across any topic, and data/graph analysis. This paper rewards students who understand how content areas connect — it punishes those who have revised topic-by-topic without integrating.
Where A-Level Chemistry Students Lose Marks
The three biggest mark-losers we see at Think Smart Academy: pH and buffer calculations (Paper 1), organic mechanism arrows drawn in the wrong direction (Paper 2), and interpreting unfamiliar IR/NMR/mass spectra (Paper 3). Chemistry rewards drill: students who do 20+ past papers before the exam routinely gain a grade over students who have done 5.
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