Infusion Details
hrs
mins
Drip Rate
--drops / min
Flow Rate
--mL / hr
About & Formulas
The IV drip rate calculation helps nurses and doctors accurately set manual IV tubing sets without an infusion pump.
Drip Rate (gtt/min) = (Total Volume (mL) × Drop Factor (gtt/mL)) / Total Time (minutes)
Flow Rate (mL/hr) = Total Volume (mL) / Total Time (hours)
Flow Rate (mL/hr) = Total Volume (mL) / Total Time (hours)
- Macrodrip sets: Deliver large drops (usually 10, 15, or 20 gtt/mL). Used for rapid fluid delivery, routine saline, or adult patients.
- Microdrip sets: Deliver tiny drops (always 60 gtt/mL). Used for precision dosing, pediatric patients, or sensitive medications.