IV Drip Rate Calculator
Calculate intravenous drip rate in drops per minute.
Supports different drop factors for macro and micro drip sets.
Your data stays in your browser. We do not store, collect, or transmit any information you enter.
IV Drip Rate
IV Drip Rate calculates how many drops per minute are needed to deliver a specific volume of fluid over a set time.
Formula:
Drops per minute = (Volume (mL) × Drop Factor (gtt/mL)) / Time (minutes)
Common drop factors:
- Macro drip (10 gtt/mL): Standard tubing for large volumes
- Macro drip (15 gtt/mL): Common in many hospitals
- Macro drip (20 gtt/mL): Used for viscous fluids
- Micro drip (60 gtt/mL): Pediatric or precise dosing
Flow rate in mL/hr:
mL/hr = Volume (mL) / Time (hours)
Example: 1000 mL over 8 hours with a 15 gtt/mL drop factor:
- mL/hr = 1000 / 8 = 125 mL/hr
- Drops/min = (1000 × 15) / 480 = 31.25 ≈ 31 gtt/min
Important: This calculator is for educational purposes. Always verify IV rates with clinical protocols and physician orders.