Oxygen Flow Rate Calculator
Reviewed by Hamza Gujjar, Algorithm Architect & Software Developer
Last updated: July 28, 2026Oxygen Flow Rate Calculator
Estimating a reference supplemental oxygen flow rate? This calculator scales flow rate to patient body weight.
Total Flow Rate (mL/min) = Body Weight(kg) x Flow Rate(mL/kg/min)
Example
A 10 kg patient, 100 mL/kg/min reference rate:
Total Flow Rate = 10 x 100 = ~1.00 L/min
The Commonly Cited Reference Range
A commonly cited reference range for supplemental oxygen via mask or nasal cannula is roughly 50-100 mL/kg/min, depending on delivery method (mask, nasal cannula, oxygen cage) and the patient's specific respiratory condition.
This Requires Veterinary Prescription and Monitoring
This is a general reference calculation only - actual oxygen therapy must always be prescribed and monitored by a veterinarian, since appropriate flow rate depends on the specific respiratory condition being treated, delivery method used, and continuous patient response monitoring.