Creatinine Clearance (Cockcroft-Gault)
Estimate creatinine clearance from serum creatinine, weight, and age.
What this calculator does
This tool estimates creatinine clearance — how quickly the kidneys clear creatinine from the blood — using the Cockcroft-Gault formula and your weight, age, sex, and creatinine level.
What your result means
The result is in mL/min. It is an estimate of kidney function sometimes used for dosing or assessment. Your provider will use it along with other information to guide care.
This is not medical advice. A healthcare provider should interpret results in your context.
Weight (kg)
Serum creatinine (mg/dL)
Age (years)
Key terms
- Creatinine clearance
- The rate at which the kidneys remove creatinine from the blood (mL/min).
- Cockcroft-Gault
- A formula that estimates creatinine clearance from weight, age, sex, and serum creatinine.
- Serum creatinine
- Creatinine level in the blood.
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This tool is for educational and reference use only. It does not constitute medical advice. Always consult a healthcare professional for medical decisions.