Pharmaceutical Calculations
Written by AlisonFreemantle on Friday 23rd January 2026
Support needed to help develop a bank of calculations for pharmacy student
University of Portsmouth are looking for help to support with developing a bank of pharmaceutical calculations for 4th year trainees and trainee pharmacists.
To help us ensure they are delivering the most up to date and current material they are looking for volunteers in practice to share any questions or materials for Part 1 of the registration assessment, Pharmaceutical Calculations, they may have.
This could be a fantastic opportunity for newly qualified pharmacists to pass their experience on to the new group of pharmacists entering the workforce soon.
If you wish to help please contact simon.archer@port.ac.uk
Part 1: Pharmacy and healthcare calculations
From Common Registration Assessment framework 2026, GPhC
Calculations topics
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Concentrations |
Medical statistics |
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Dilutions |
Pharmacoeconomics |
|
Displacement volumes |
Pharmacokinetics |
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Dose and dosage regimens |
Quantities to supply |
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Infusion rates |
|
All calculation questions in Part 1 reflect scenarios that could be encountered when practising as a pharmacist. Trainee pharmacists are expected to apply their underpinning pharmacy knowledge and understanding of common pharmacy principles to ensure answers are practical and realistic. All calculation questions will be multi-step and may require one or more of the following underpinning pharmacy calculation skills:
- rounding at appropriate stages
- using pharmacy or healthcare formulae
- using a resource to identify, extract and interpret information
- unit conversions
Trainee pharmacists are expected to know simple formulae used in everyday practice (e.g., body mass index) these will not be provided. More complex formulae will be provided.