Free Pharmacy Calculators & Reference Tools
Essential tools for compounding pharmacies, clinical pharmacy practice, and pharmaceutical calculations. All tools are free to use and require no account.
Built by Compound Direct, a platform dedicated to simplifying pharmaceutical compounding and clinical pharmacy workflows.
Unit Conversion
Convert between common pharmacy concentration units including percentage (% w/v, % w/w), mg/mL, mg/g, and more. Essential for compounding calculations.
Ideal Body Weight
Calculate ideal body weight (IBW) and adjusted body weight (AdjBW) using the Devine formula. Used for drug dosing in clinical pharmacy practice.
Body Surface Area
Calculate body surface area using Du Bois and Mosteller formulas. Commonly used for chemotherapy dosing and renal function assessment.
Capsule Reduction Planner
Plan an optimised dose tapering schedule using the fewest capsule strengths. Generates a step-by-step reduction table for compounding pharmacies.
Salt ↔ Base Conversion
Reference table and calculator for converting between salt forms and elemental/base equivalents. Covers calcium, magnesium, iron, fluoxetine, sildenafil, and more.
Packing Competency
Assess capsule-filling uniformity across a 10×10 plate with guided weighing and heat map analysis to identify packing bias.
Capsule Packstat
Convert between capsule sizes and volumes, estimate packstats from powder density, and convert known packstats across capsule sizes for compounding formulation.