Glomerular Filtration Calculator
❤️ The human body. Use the Glomerular filtration (clearance) formula to find clearance, urine concentration, urine flow, plasma concentration: pick the value you want, type the others, and the answer updates as you go.
U and P = concentration in urine and plasma, V = urine flow rate.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Clearance | ml/min |
| Urine concentration | mg/ml |
| Urine flow | ml/min |
| Plasma concentration | mg/ml |
Worked example
Find the clearance when Urine concentration = 12.5 mg/ml, Urine flow = 1 ml/min, Plasma concentration = 0.1 mg/ml.
Using C = (U × V)/P: Clearance = 125 ml/min.
Frequently asked questions
What is the formula for Glomerular filtration (clearance)?
C = (U × V)/P. U and P = concentration in urine and plasma, V = urine flow rate.
What do the letters stand for, and what units are used?
Clearance in ml/min, Urine concentration in mg/ml, Urine flow in ml/min, Plasma concentration in mg/ml.
How do you calculate clearance?
Put the values into C = (U × V)/P. For example, with Urine concentration = 12.5 mg/ml, Urine flow = 1 ml/min, Plasma concentration = 0.1 mg/ml, clearance = 125 ml/min.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (clearance, urine concentration, urine flow, plasma concentration) and fill in the others: it rearranges the formula for you.
