How do I calculate IV drip rate?

Pump rate: mL/hr = Total volume (mL) ÷ Time (hours). Manual drip rate: gtt/min = (Volume × Drop factor) ÷ (Time in minutes). The drop factor depends on the IV tubing set being used.

What are common IV drop factors?

Macro-drip sets: 10 gtt/mL (blood/viscous fluids), 15 gtt/mL (standard), 20 gtt/mL (standard). Micro-drip set: 60 gtt/mL (pediatrics, precise dosing). The drop factor is printed on the IV tubing packaging.

When should I use micro-drip vs macro-drip?

Micro-drip (60 gtt/mL) is used for: pediatric patients, critical medications requiring precise dosing, and rates 50 mL/hr.

How do I verify the drip rate is correct?

Count the drops in the drip chamber for 15 seconds and multiply by 4 to get drops/minute. Compare with the calculated rate. For gravity infusions, adjust the roller clamp accordingly. Always double-check calculations and monitor the patient regularly.

Online Medical Tools — IV Drip Rate

Printed on 2/13/2026

For informational purposes only. This is not medical advice.

IV Drip Rate

This IV drip rate calculator determines the flow rate for intravenous fluid administration. It calculates both the electronic pump rate (mL/hr) and manual drip rate (drops per minute) based on the total volume to infuse, infusion time, and IV tubing drop factor. Accurate drip rate calculation is critical for patient safety in medication and fluid administration.

Compare with Pediatric Dose

Formula: mL/hr = Volume ÷ Time; gtt/min = (Volume × Drop Factor) ÷ (Time × 60)

Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.