CRI Calculator

Calculate Constant Rate Infusion doses and rates for IV drug delivery. Supports direct administration and adding drugs to fluid bags.

Patient & Drug Information

Body Weight

Weight Unit

Species

Drug

Add to Fluid Bag (Optional)

Calculate how much drug to add to a fluid bag at your desired fluid rate.

Fluid Bag Size

Target Fluid Rate

mL/hr

Maintenance fluid rate for this patient

Frequently Asked Questions

Disclaimer: This calculator is for educational and reference purposes only. Always verify calculations with appropriate veterinary references before clinical use.