mL/hr to mg/hr Calculator
Convert an infusion pump rate (mL/hr) into a medication dose rate (mg/hr) using concentration (mg/mL).
Pump rate in mL per hour (commas accepted).
How many mg are in each 1 mL.
How mL/hr to mg/hr Conversion Works
Infusion pumps are often programmed in mL per hour (mL/hr). Medication strength is often expressed as mg per mL (mg/mL). To convert the pump setting into the delivered dose per hour, you multiply the two values.
This is a standard “rate × concentration” calculation used for continuous infusions to help confirm dose delivery during preparation, pump programming, and handover checks.
Formula
Worked Examples
Example 1: Pump is 10 mL/hr. Concentration is 2 mg/mL. What is the dose in mg/hr?
Example 2: Pump is 12 mL/hr. Concentration is 1.5 mg/mL. What is mg/hr and mg/min?
mg/min = 18 ÷ 60 = 0.3 mg/min
Example 3: Pump is 2.5 mL/hr. Concentration is 4 mg/mL. What is mg/hr?
Clinical safety note: Always confirm the concentration source (mg/mL), the pump units (mL/hr), and local protocols. High-risk infusions often require an independent double-check. This tool supports checking only.
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Frequently Asked Questions
Clinical reminder: Always follow local protocols and consult medication information sheets. These examples are for calculation practice only.
References & Sources
References focus on medication calculation concepts and safe administration principles.
Clinical disclaimer: Educational checking tool only — always follow local policy and product guidance.