IV Drip Rate Calculator
Drops per minute for an infusion.
Enter your values
Results update instantly as you type — no submit needed.
Results
- Drip rate
- 41.7 gtt/min
- Flow rate
- 125 mL/hour
- Drops per second
- 0.69
- Seconds between drops
- 1.44
- Total minutes
- 480
Quick answer
Drip rate equals volume times the drop factor divided by infusion time in minutes.
gtt/min = (Volume × Drop factor) ÷ Minutes
How to use the IV Drip Rate Calculator
- 1Enter the total volume to infuse.
- 2Enter the infusion time in hours.
- 3Select the tubing drop factor.
Frequently asked questions
What is a macrodrip set?
10–20 gtt/mL tubing used for routine adult fluids.
When is microdrip used?
60 gtt/mL for paediatrics and precise low-rate infusions.