Free Tools

Nursing Dosage Calculators

Free dose calculators for NCLEX practice. Tablets, liquid mL, IV drip rate, weight-based doses, pediatric safe-dose checks, and heparin drip. Each calculator includes the formula and a worked example. No signup required.

Tablet & Capsule Dose Calculator
How many tablets when the order doesn't match the available strength?
Liquid Dose Calculator (mL)
Convert an ordered mg dose to mL when the medication is liquid.
IV Drip Rate Calculator (gtt/min)
Compute gtt/min from volume, time, and drop factor for gravity drips.
Weight-Based Dose Calculator (mg/kg)
Total mg from a mg/kg order — the foundation of pediatric and many adult doses.
Pediatric Safe Dose Calculator
Check if a pediatric order falls within the recommended mg/kg/dose range.
Heparin Drip Rate Calculator (mL/hr)
Convert ordered units/hr to mL/hr based on the bag's concentration.