Free Patient Tool
Creatinine Clearance Calculator (Cockcroft-Gault)
Enter your age, weight, sex, and serum creatinine to estimate your creatinine clearance instantly. Free, private, and no sign-up needed.
Calculate your CrCl
This calculator provides a general estimate only and is not a diagnosis. Prefer CKD-EPI? Try our eGFR Calculator. Always consult your doctor for medical advice.
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Frequently asked questions
Creatinine clearance (CrCl) estimates how well your kidneys filter waste from your blood. The Cockcroft-Gault formula estimates CrCl from your age, weight, sex, and serum creatinine level, and is widely used to guide medication dosing.
This creatinine clearance calculator is provided for general informational purposes only and does not constitute medical advice or a diagnosis. Critical Kare Pharma does not provide medical advice; always consult a qualified doctor or pharmacist about your kidney function and any medicines you may need.