Free Pharmacy Tools

Calculate days supply for tablets, liquids, inhalers, insulin, eye drops, and topicals. Interactive calculator built for pharmacy technicians.

56 drug-specific worked examples — Lantus, Ozempic, latanoprost, albuterol, and more.

Enter quantity, dose per day, and last fill date to get the days supply, run out date, and the earliest date insurance will pay.

Vials and pens converted to total units, divided by daily units. Includes a units per package cheat sheet.

mL to drops, one eye or both, with bottle size quick reference for latanoprost, timolol, and Restasis.

Actuations divided by puffs per day for albuterol, Symbicort, Advair, Breo, Spiriva, and Trelegy.

Quantity divided by tablets per day, with every other day, three times a week, and weekly schedules handled for you.

Convert a milligram dose into millilitres from any suspension concentration, then get the days supply from the bottle size.

Grams dispensed divided by grams per day, with a fingertip unit chart to estimate the amount per application.