Drip Rate Calculator
Convert a volume (mL) and duration (min) into both a pump rate (mL/hr) and a gravity-drop rate (gtts/min) for a given tubing drop factor.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Volume
- 1000 mL
- Duration
- 480 minutes
- Drop factor
- 15 gtts/mL
Result: 125 mL/hr; 31 gtts/min
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Volume
- Duration
- Drop factor
What this is
Sophie Well shows both values so the same calculation works whether you have a pump or a gravity set. Drop factors of 10, 15, 20, and 60 (microdrip) cover the common tubing.
When to use it
Use this at any bedside infusion that does not have its own protocol-defined pump program: maintenance fluids, intermittent antibiotics, blood-product timing, gravity-set field infusions. For weight-based or concentration-based infusions, see the Weight-Based Dose and Concentration-to-Rate tools.
How this is calculated
Standard infusion arithmetic: rate (mL/hr) = volume * 60 / duration; gtts/min = volume * drop factor / duration.
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.
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