The Cockcroft-Gault Creatinine Clearance (CrCl) Calculator is a widely used tool to estimate a patient’s kidney function. It uses a formula incorporating a patient’s age, weight, sex, and serum creatinine level to calculate an estimated creatinine clearance in mL/min. This estimate is crucial for healthcare professionals, particularly for adjusting drug dosages in patients with impaired kidney function, ensuring medication safety and efficacy. While newer equations exist, Cockcroft-Gault remains commonly referenced due to its historical use in drug development studies.

Cockcroft-Gault CrCl Calculator

Age (years) Weight Weight Unit Serum Creatinine (mg/dL) Gender

Creatinine Clearance Scale (ml/min)

≥ 90: Normal kidney function

60–89: Mild kidney impairment

30–59: Moderate impairment

15–29: Severe impairment

< 15: Kidney failure

About This Calculator

This Creatinine Clearance (CrCl) calculator is based on the Cockcroft-Gault equation. It helps estimate kidney function by calculating the clearance rate of creatinine from the body. Simply input age, weight, serum creatinine levels, and gender. The result reflects renal function and helps in dosing adjustments for renally-excreted medications.

This calculator supports both metric (kg) and imperial (lb) weight units and provides instant results with automatic classification. The output includes a downloadable PDF for easy record-keeping.

Keywords: Creatinine Clearance Calculator, Cockcroft-Gault Equation, Kidney Function Estimator, CrCl online tool, renal dosing calculator, nephrology tool.