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Creatinine Clearance

Estimate creatinine clearance using the Cockcroft-Gault equation.

Enter Patient Parameters

Fields marked with * are required.

Enter Patient Parameters

Enter the required values to calculate the clinical estimate.

Clinical Result

Your calculated result and its clinical interpretation.

Result will appear here

Complete the patient parameters and select Calculate to see the value, classification, and clinical explanation.

Interpretation

This calculator provides an estimate based on the information entered. The result should be interpreted in the context of the patient's clinical condition, laboratory data, medications, and the purpose for which the estimate is being used.

Calculator outputs are estimates and are not a diagnosis or a substitute for clinical judgment.

Calculation Details

Inputs and methodology used by this tool.

CalculatorCreatinine Clearance
CategoryRenal

When to Use

  • Use as a structured clinical estimation aid when the required patient variables are available.
  • Review the assumptions and limitations of the underlying equation before acting on the result.
  • Combine the calculated value with the broader clinical picture rather than using it in isolation.

Kidney Function Context

Reference ranges for kidney filtration should not be confused with a diagnosis of CKD.

≥ 90Normal or high
60–89Mildly decreased
45–59Mild–moderate decrease
30–44Moderate–severe decrease
15–29Severely decreased
< 15Kidney failure range

Factors Affecting the Result

Age

Weight

Serum creatinine

Sex

Clinical disclaimer

This calculator is provided for educational and clinical decision-support purposes. Results depend on the accuracy of the information entered and should be verified against current clinical guidance and the individual patient context.

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