IV Drip Rate Calculator
Accurate IV drip rate calculation is essential for safe intravenous fluid and medication administration. This calculator determines the correct drip rate in drops per minute (gtt/min) for manual regulation and mL/hr for IV pump settings based on the prescribed volume, time, and tubing type.
The IV drip rate formula is: Drip Rate (gtt/min) = [Volume (mL) x Drop Factor (gtt/mL)] / Time (minutes). The drop factor is specific to the IV tubing being used and is printed on the tubing packaging. Macro drip sets typically have drop factors of 10, 15, or 20 gtt/mL, while micro drip sets have a standardized 60 gtt/mL factor.
Macro drip tubing is used for standard fluid replacement and blood products where faster flow rates are needed. Micro drip tubing (60 gtt/mL) is used when precise, slow infusion rates are required, such as with pediatric patients or potent medications. With micro drip tubing, the drip rate in gtt/min conveniently equals the flow rate in mL/hr.
When using an IV infusion pump, the rate is set in mL/hr rather than drops per minute. The pump delivers precise volumes regardless of the tubing drop factor. This calculator provides both values for versatility. IMPORTANT: This calculator is for educational and reference purposes. IV administration should only be performed by trained medical professionals. Always verify calculations independently before administration.