Cockcroft-Gault Creatinine Clearance Calculator

Kidney Function Estimator Using Cockcroft-Gault Formula

Input Fields

Gender

MenWomen

Age

years

Enter your age in years

Weight

kg

Enter your weight in kilograms

Serum creatinineEnter your serum creatinine level

Serum creatinine unit

mg/dLμmol/L

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Calculate automaticallyIf enabled, the result will update automatically when you change any value.

Your Results

Creatinine Clearance Value

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Cockcroft-Gault Equation for Creatinine Clearance

$$\text{CrCl (Male)} = \frac{(140 – \text{age}) \times \text{weight (kg)}}{72 \times \text{Scr}}$$ $$\text{CrCl (Female)} = 0.85 \times \frac{(140 – \text{age}) \times \text{weight (kg)}}{72 \times \text{Scr}}$$

Where:

• $$CrCl$$ = Creatinine Clearance (mL/min)
• $$Age$$ = Patient’s age in years
• $$Weight$$ = Body weight in kg
• $$Scr$$ = Serum creatinine (mg/dL)
• The formula for females includes a correction factor of 0.85

The Cockcroft-Gault equation is commonly used to estimate creatinine clearance, which reflects kidney filtration efficiency. It is especially useful in adjusting drug dosages for patients with impaired renal function. This formula considers age, body weight, and serum creatinine, with a gender-specific adjustment for females. It is a standard method in clinical pharmacology and nephrology for evaluating renal performance.