Free CPhT Tool
PTCB Calculations Practice — Free Problems With Worked Solutions
Dosage, days supply, concentrations, dilutions, IV flow rates, and business math, broken down step by step.
Calculations are included in the PTCE content outline. Every problem here comes with a worked solution so you can review the method, not only the final answer.
Why it works
Every step shown.
No “the answer is 12 mL” and nothing else. Each solution walks the full method so you can reproduce it under pressure.
Five calc types.
Dosage, days supply, concentration/dilution, IV flow rates, and pharmacy business math — organized so you can drill your weak area.
Built to reduce test-day panic.
Repeated, patterned practice turns “I hope I remember the formula” into muscle memory.
See your progress.
A free account saves your history and flags the calc types you keep missing.
Frequently asked
What kind of math is on the PTCB?
Primarily dosage, days supply, concentrations/dilutions, ratio & proportion, IV flow rates, and basic pharmacy business math — all covered here.
Do I need a calculator?
No — you won’t need to bring one. The testing center provides a basic calculator for the PTCE, and these problems are built to match that.
Are the solutions really step-by-step?
Yes — every problem includes the full method, not just the final answer.