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Apex Nursing

IV Drip Rate Calculator

Gravity drips, pump rates, and weight-based infusions — with the formula shown for every answer.

mL

Drop factor

Enter volume and time to calculate the drip rate.

Formulas

gtt/min = (volume mL × drop factor) ÷ time in minutes

mL/hr = volume mL ÷ time in hours

mL/hr = (mcg/kg/min × weight kg × 60) ÷ concentration mcg/mL