Drip Rate Calculator
Calculate IV drip rate, flow rate in drops per minute, and bag completion time from dose, weight, concentration, and drop factor.
What Is IV Drip Rate?
IV drip rate is the speed at which an intravenous solution is delivered, usually expressed in milliliters per hour (mL/h). It ensures a patient receives the prescribed drug dose per kilogram per minute. Related fluid tools include the Drops Per Minute Calculator and Dosage Calculator.
Drip Rate Formula
Drip rate (mL/h) equals 60 multiplied by desired dose (mg/kg/min), patient weight (kg), and bag volume (mL), divided by total drug in the bag (mg). Flow rate in drops per minute equals drip rate times drop factor divided by 60.
Clinical Use
Always verify calculations against institutional protocols, pump settings, and the medication label. Drop factor depends on IV tubing (macrodrip 10 to 20 gtt/mL or microdrip 60 gtt/mL).
Frequently Asked Questions
How do I convert drip rate to gtt/min?
Multiply drip rate in mL/h by the drop factor, then divide by 60.
What units does desired dose use?
Desired dose is entered in milligrams per kilogram per minute (mg/kg/min).
How is bag finish time calculated?
Bag time in minutes equals bag volume times 60 divided by drip rate in mL/h.
Can this replace pharmacist verification?
No. This is an educational calculator; licensed clinicians must confirm all IV orders.
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