Calculates CrCl according to the Cockcroft-Gault equation.
Creatinine Clearance Calculator
Cockcroft-Gault Equation
Result
Estimated CrCl: mL/min
Weight used: kg
Serum creatinine used: mg/dL
BMI: kg/m²
Formula:
CrCl = [(140 – age) × weight kg × sex factor] / [72 × SCr mg/dL]
Clinical note: This calculator is for educational use only.
Cockcroft-Gault estimates creatinine clearance and is commonly used for medication dosing,
but it may be inaccurate in some patients, including those with unstable serum creatinine,
extremes of body size, pregnancy, amputations, or unusual muscle mass.
References
- Cockcroft DW, Gault MH. Prediction of creatinine clearance from serum creatinine. Nephron. 1976;16(1):31-41.
- National Kidney Foundation. Cockcroft-Gault Formula: CCr = {((140 – age) × weight) / (72 × SCr)} × 0.85 if female.
- Creatinine unit conversion: 1 mg/dL ≈ 88.4 µmol/L.
- Ideal body weight using Devine formula: Male = 50 + 2.3 × inches over 60; Female = 45.5 + 2.3 × inches over 60.
