Kidney Function Tool
CrCl Calculator
Estimate creatinine clearance using the Cockcroft-Gault equation with age, sex, weight, serum creatinine, and optional height-based adjusted body weight.
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This calculator estimates creatinine clearance in mL/min. It is commonly used for kidney function estimation and medication dosing support.
Cockcroft-Gault equation:
CrCl = ((140 − age) × weight) ÷ (72 × serum creatinine)
For females: multiply result by 0.85
Creatinine in µmol/L is converted to mg/dL by dividing by 88.4.
CrCl = ((140 − age) × weight) ÷ (72 × serum creatinine)
For females: multiply result by 0.85
Creatinine in µmol/L is converted to mg/dL by dividing by 88.4.
Estimated Creatinine Clearance0 mL/min
Kidney Function Category—
Weight Used
0 kg
IBW
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Creatinine Used
0 mg/dL
Actual body weight0 kg
Adjusted body weight—
Weight method used—
Formula correction—
Clinical note—
This calculator is for educational use only and does not replace clinical judgment. Creatinine clearance estimates can be inaccurate in pregnancy, acute kidney injury, extreme body size, unusual muscle mass, unstable creatinine, and some older or critically ill patients.
