Free Creatinine Clearance Calculator
Estimate kidney function using the Cockcroft-Gault equation for creatinine clearance.
years
kg
mg/dL
Creatinine Clearance
100.0 mL/min
GFR Estimate100 mL/min
Creatinine Clearance vs Age
Cockcroft-Gault Equation
CrCl = [(140 - Age) x Weight(kg)] / [72 x Serum Creatinine] x (0.85 if female)
This equation estimates creatinine clearance as a proxy for glomerular filtration rate (GFR).
Kidney Function Stages
Example Calculation
A 50-year-old male, 80 kg, serum creatinine 1.0 mg/dL.
- 01CrCl = (140 - 50) x 80 / (72 x 1.0)
- 02= 90 x 80 / 72
- 03= 7200 / 72 = 100 mL/min (Normal)
Frequently Asked Questions
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