Clinical safety notice
This calculator supports arithmetic and education only. Confirm every result against the prescription, medication label, tubing package, pump instructions, patient factors, and institutional policy. Medication infusions require independent clinical verification. Never rely on this page as the sole basis for treatment.
Formula used
Gravity drip rate: volume in mL × drop factor in gtt/mL ÷ infusion time in minutes.
Pump flow: volume in mL ÷ infusion time in hours.
Infusion time: volume in mL ÷ flow in mL/hour.
Observed flow: counted drops × 60 ÷ counted seconds, then converted using the tubing factor.
Medication flow: ordered hourly dose ÷ solution concentration.
How to use this calculator
- Select the required calculation mode.
- Enter the prescribed volume, time, rate, concentration, or observed count.
- Select units exactly as written on the source information.
- Confirm the tubing drop factor from its packaging.
- Press Calculate and review every conversion step.
- Independently verify medication and patient-specific calculations.
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