Creatinine Clearance

Cockcroft-Gault equation

Clinical notes

For estimation only — not a substitute for clinical judgment. Not validated in pregnancy, acute kidney injury, or rapidly changing renal function.
Cockcroft-Gault uses actual body weight, but tends to overestimate CrCl in obese patients. If height is provided, ideal and adjusted body weight estimates will also be shown.
Adjusted body weight (IBW + 0.4·(ABW − IBW)) is commonly preferred when BMI ≥ 30.
Height is optional — leave it blank to skip BMI/IBW/adjusted calculations.

Age (years)

Sex

Weight

Serum Creatinine

Height (optional — for BMI/IBW)

Enter patient data above to estimate creatinine clearance.