Online Tool Store
IV Drip Rate Calculator
Calculate IV flow rate (mL/hr) and drip rate (gtt/min) from infusion volume, time, and drop factor - an educational nursing reference tool.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Flow rate
Drip rate
How the IV drip rate calculator works
- Enter the total volume to infuse and the infusion time in hours.
- Select the drop factor printed on your IV tubing set.
- See the resulting flow rate (mL/hr) and drip rate (gtt/min).
FAQ
How is the drip rate calculated?
Flow rate (mL/hr) is volume divided by time. Drip rate (gtt/min) is flow rate multiplied by the drop factor, divided by 60 minutes - the standard nursing formula.
What is a drop factor?
The number of drops per mL delivered by a specific IV tubing set, printed on the tubing packaging - macro-drip sets are commonly 10, 15, or 20 gtt/mL, while micro-drip sets are 60 gtt/mL.
Is this safe to use for actual patient care?
This is an educational reference tool, not a substitute for clinical judgment. Always follow your facility's protocols and verify calculations with a second clinician before administering any infusion.
Why do macro and micro drip sets give different drip rates?
A higher drop factor (like 60 gtt/mL for micro-drip) means each drop delivers less fluid, so more drops per minute are needed to achieve the same flow rate - useful for precise, slower infusions like pediatric care.
How we compare
| Feature | Online Tool Store | Manual calculation | Electronic infusion pump |
|---|---|---|---|
| Instant calculation | ✓ | ✗ | ✓ |
| Useful for nursing education/practice | ✓ | ✓ | ✗ |
| Clinical-grade dosing safety checks | ✗ | ✗ | ✓ |
A helpful study and reference aid for nursing students learning gravity-drip IV calculations.