Infusion Calculator: Accurate Dosage & IV Drip Rates

Use this infusion calculator tool to quickly determine the correct volume and rate for your IV infusions without any hassle.

Infusion Calculator Explanation

This calculator helps healthcare professionals determine the infusion time for medications. The infusion time is the total duration for which a drug is administered intravenously.

How to Use the Calculator

To use the calculator, enter the dose of the medication in milligrams (mg), the weight of the patient in kilograms (kg), and the prescribed infusion rate in milligrams per kilogram per minute (mg/kg/min). Then, click on “Calculate” to find out the infusion time in minutes.

How It Calculates the Results

The calculator uses the formula:

Infusion Time (minutes) = Dose (mg) / (Weight (kg) * Infusion rate (mg/kg/min))

It divides the total dosage by the product of the patient’s weight and the infusion rate to find out how long the infusion should take.


The results from this calculator are strictly for educational purposes and should not be used as the sole basis for patient care. Professional judgment and protocols should always be followed. Additionally, the calculator assumes perfect conditions and does not account for potential pharmacokinetic variations or complications during infusion.

Other Resources and Tools