Clinical calculator
IV drip rate
Drops per minute and mL per hour from the volume, the infusion time and the giving-set drop factor.
Inputs
Drip rate
0 gtt/min
Infusion pump rate0 mL/hr
For reference only. Confirm the giving-set drop factor and the prescription before
setting any infusion. This tool is an educational aid, not a substitute for professional clinical
judgement, and OlivHealth is not liable for any decision made using it.
Frequently asked questions
How is IV drip rate calculated?
Drops per minute = (volume in mL × drop factor) ÷ time in minutes. The tool supports common drop factors of 10, 15, 20 and 60 gtt/mL.
What is a drop factor?
The drops per mL a giving set delivers, printed on the IV set packaging. Macrodrip sets are 10–20 gtt/mL; a microdrip set is 60 gtt/mL.
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