Creatinine Clearance (Cockcroft-Gault)
Estimated creatinine clearance, used for drug dosing decisions.
What is Creatinine Clearance (Cockcroft-Gault)?
Estimated creatinine clearance, used for drug dosing decisions. Creatinine Clearance is intended for use in: Adults.
How to Use the Creatinine Clearance Calculator
- Enter Weight in kg.
- Enter Serum creatinine in mg/dL.
- Enter Age in years.
- Enter Sex.
- Click Calculate to see your result and interpretation.
Formula & Version
This calculator uses formula version 1.0, last reviewed September 2026.
Clinical Considerations & Limitations
- Uses actual body weight as entered — many institutions substitute ideal or adjusted body weight in obese patients; check local drug-dosing policy.
- Less accurate than eGFR equations for general kidney-function staging, but remains the equation many drug labels' dosing tables were built on.
References
- Cockcroft DW, Gault MH, Nephron 1976;16:31-41
Frequently Asked Questions
What is Creatinine Clearance (Cockcroft-Gault)?
Estimated creatinine clearance, used for drug dosing decisions.
Who is Creatinine Clearance intended for?
Adults. Always confirm applicability to your specific patient before use.
What are the limitations of Creatinine Clearance?
Uses actual body weight as entered — many institutions substitute ideal or adjusted body weight in obese patients; check local drug-dosing policy. Less accurate than eGFR equations for general kidney-function staging, but remains the equation many drug labels' dosing tables were built on.
What formula or reference does Creatinine Clearance use?
Cockcroft DW, Gault MH, Nephron 1976;16:31-41
Is Creatinine Clearance a diagnosis?
No. Creatinine Clearance produces a score or estimate to support clinical decision-making — it is not a diagnosis and should be interpreted alongside full clinical judgement.
