Animal IV Fluid Rate Calculator
Enter patient weight, fluid indication, and drip set to calculate IV fluid infusion rate in mL/hr and drops/min for dogs, cats, and other veterinary patients.
Use the Animal IV Fluid Rate Calculator
Patient Parameters
Enter patient data and click Calculate
Results will appear here
Infusion Rate
—
mL / hr
Drop Rate
—
drops / min
Calculation Breakdown
Clinical Notes
For educational and clinical support use only. Always verify calculations and individualize therapy based on patient assessment.
Summary
This calculator estimates the intravenous fluid infusion rate for veterinary patients including dogs, cats, and horses. Enter the animal's weight, select the clinical indication (maintenance, mild/moderate/severe dehydration, or shock), and the tool returns a recommended rate in mL/hr along with drop rates for common drip sets. Calculations follow standard veterinary fluid therapy guidelines and are intended to support, not replace, clinical judgment.
How it works
- Select the animal species to apply species-specific maintenance rate constants.
- Enter the patient's body weight in kilograms or pounds.
- Choose the clinical indication: maintenance, mild dehydration, moderate dehydration, severe dehydration, or shock.
- For dehydration, the estimated fluid deficit is calculated and spread over the chosen replacement period.
- Select your IV drip set (10, 15, 20, or 60 drops/mL) to get the drop rate.
- Review the resulting mL/hr, total volume, and drops/min values before setting your pump.
Use cases
- Calculate maintenance fluid rates for hospitalized dogs and cats.
- Estimate rehydration volume and rate for dehydrated animals.
- Determine shock bolus volumes for emergency fluid resuscitation.
- Convert mL/hr to drops/min when using a gravity drip set without a pump.
- Cross-check pump settings before starting or adjusting an IV infusion.
- Teach veterinary students and technicians standard fluid therapy calculations.
- Plan total daily fluid budgets for ICU patients.