Feb 18, 2014 · Common syringe sizes include 1 cc, 3 cc, 5 cc, 10 cc, 20 cc, 30 cc, and 60 cc. Calculations often used for compounding. Pharmacy compounding often requires pharmacists and technicians to perform various calculations in order to prepare a final product. Chapter 18 - Powder Volume Calculations Chapter 19 - Percentage Strength Chapter 20 - Ratio Strength Chapter 21 - Parts Per Million, and Reducing & Enlarging Formulas Chapter 22 - Dosage Calculations Based on Body Weight Chapter 23 - Dosage Calculations Based on Body Surface Area Chapter 24 - Drip Rates & Infusion Rates