Calculator
Urine Output Calculator (mL/kg/h)
Urine production in mL/kg/h from the volume collected, body weight and collection time — for in-patients on fluids or with suspected acute kidney injury.
Results are calculated in your browser. Always double-check before administering and use your clinical judgement.
How it is calculated
Urine output (mL/kg/h) = volume (mL) ÷ body weight (kg) ÷ hours.
Worked example
120 mL over 6 h in a 10 kg dog = 2 mL/kg/h.
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