IV Drip Rate Calculator
Drip Rate Calculation
Formula
Drip Rate (gtt/min) = (Volume mL × Drop Factor) / (Time in minutes)
Frequently Asked Questions
What is a drop factor?
A drop factor is the number of drops per milliliter that an IV administration set delivers. Common macro drip sets are 10, 15, or 20 gtt/mL, while micro drip sets deliver 60 gtt/mL.
How do I calculate IV drip rate?
IV drip rate (gtt/min) = (Volume in mL × Drop factor) / (Time in minutes). For example, 1000 mL over 8 hours with a 15 gtt/mL set = (1000 × 15) / 480 = 31.25 gtt/min.
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