How to use the urine output per kilogram calculator
Calculate urine output rate in mL per kg per hour, a common measure of kidney function in hospital. Enter urine volume, body weight, collection time in the fields above; the urine output is computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “urine output mL/kg/h”, “urine output rate”, “kidney output monitoring”, “calculate urine output per kilogram”, “find urine output”.
Formula
Variables
- urine — Urine volume (mL)
- w — Body weight (kg)
- hrs — Collection time (h)
Worked example
With urine volume = 120 mL, body weight = 70 kg, collection time = 4 h, the calculator gives urine output ≈ 0.4285714 mL/kg/h.
Frequently asked questions
What is the urine output per kilogram calculator used for?
Calculate urine output rate in mL per kg per hour, a common measure of kidney function in hospital. It helps with questions such as “urine output mL/kg/h”, “urine output rate”, “kidney output monitoring”.
What is the formula for the urine output per kilogram calculation?
Urine output (mL/kg/h) = urine / (w × hrs). Here urine is urine volume (mL), w is body weight (kg), hrs is collection time (h).
What inputs do I need for the urine output per kilogram calculator?
You need urine volume in mL, body weight in kg, collection time in h. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the urine output per kilogram calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the urine output per kilogram result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.