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Calculate the infusion pump rate in mL/hr = Total volume / Infusion time. Time may be hours+minutes or minutes; also reports mL/min and the decimal duration. Verify pump units match the order, confirm line patency, and sum channels for restricted patients. Derived from Macklin 2011, NICE CK174 2017, Phillips 2007, and ISMP. Not medical advice.
Execution
Fill in the form, run the tool, and review the result in one place.
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Tool usage guide
The Infusion Rate Calculator determines an infusion pump rate in mL/hr from the total volume and infusion time. Enter time as hours, minutes, or both to also see the equivalent mL/min and decimal duration. Verify the result against the order and pump settings; this tool is not medical advice.
Background
A 1,000 mL fluid bag is prescribed to infuse over 8 hours.
Problem
Find the hourly pump setting and the equivalent minute-based rate.
How to use
Enter 1000 for Volume, 8 for Time (hours), 0 for Time (minutes), and 1 for Decimal Places.
Volume: 1000 mL; Hours: 8; Minutes: 0; Decimal places: 1Outcome
The calculator returns 125 mL/hr, approximately 2.1 mL/min, with a decimal duration of 8 hours.
Background
A 100 mL antibiotic admixture is scheduled for infusion over 30 minutes.
Problem
Convert the 30-minute duration into the pump rate in mL/hr.
How to use
Enter 100 for Volume, 0 for Time (hours), 30 for Time (minutes), and 1 for Decimal Places.
Volume: 100 mL; Hours: 0; Minutes: 30; Decimal places: 1It uses mL/hr = total volume in mL ÷ infusion time in hours.
Yes. Enter the duration in the minutes field, such as 30 minutes for a 100 mL infusion.
It reports the pump rate in mL/hr, the equivalent mL/min, the duration in decimal hours, and the calculation method.
You can set the decimal places from 0 to 8. The default is 1.
No. Verify the result, pump units, line patency, and prescription using applicable clinical procedures.
Outcome
The calculator returns 200 mL/hr, approximately 3.3 mL/min, with a decimal duration of 0.5 hours.