Free tools

Free pharmacy technician calculators

The everyday math of pharmacy work, which is also the math the PTCB exam tests. Each calculator shows its work, so you can check your own.

• Days supply calculator

  How many days a prescription lasts, for tablets or liquids.

• NDC 10 to 11 digit converter

  Convert a label NDC (4-4-2, 5-3-2, 5-4-1) to the 11-digit billing format.

• Pediatric dose calculator (mg/kg)

  Weight-based dosing: pounds to kg, mg/day and mg per dose.

• IV drip rate calculator

  IV flow rate in mL/hr and drip rate in gtt/min for any drop factor.

Studying for the PTCB exam? Take the free practice test with 40 questions across all four domains.