grades A*–E. May/June series. Years available: 2024, 2023, 2022.
For Pearson Edexcel IGCSE Chemistry, the raw mark shown is the combined total across all papers. Add up your marks from each paper component to get your total.
| Grade | Min. mark (out of 120) | % |
|---|---|---|
| A* | 99 marks | 83% |
| A | 83 marks | 69% |
| B | 67 marks | 56% |
| C | 51 marks | 43% |
| D | 36 marks | 30% |
| E | 25 marks | 21% |
Use the Past Paper Score Tracker to log each past paper and see your score % trend — then compare it to these boundaries.
For Pearson Edexcel IGCSE Chemistry, the raw mark shown is the combined total across all papers. Add up your marks from each paper component to get your total.
Yes — your raw mark is the sum of your marks from all papers in the subject. For example, if Chemistry has two papers and you scored 65/100 on Paper 1 and 72/100 on Paper 2, your total raw mark is 137/200. Enter 137 in the tool to see your grade.
Pearson Edexcel IGCSE Chemistry is assessed across multiple papers covering different topics within the subject. Your total raw mark is the sum of your marks from all papers. Cambridge and Edexcel publish the full component structure in the official specification.
This tool has grade boundary data for the following years: 2024, 2023, 2022. All data is from the May/June examination series, which is the main series for most students.
Grade boundaries are adjusted each year so that students who performed as well as an average student from a previous year receive the same grade, regardless of whether that year's paper was harder or easier. This process is called grade protection (Cambridge) or comparable outcomes (Ofqual). A harder paper will have lower boundaries; an easier paper will have higher ones.
If your mark is within 2–3 marks of the next grade boundary, it may be worth asking your school about an Enquiry About Results (EAR) or a clerical check. One mark can sometimes be the difference between grades. Note that mark reviews can result in grades going up, staying the same, or going down — discuss with your teacher before requesting one.
These boundaries are sourced from published Pearson Edexcel grade threshold documents and are provided for reference only. Boundaries for 2026 exams are not yet published — they will be released on results day. Always verify at the official Pearson Edexcel website.
The terms are used interchangeably. A grade threshold (Cambridge terminology) or grade boundary (AQA/Edexcel terminology) is the minimum raw mark needed to achieve a particular grade in that examination series.
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