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Creatinine Clearance Calculator
Estimate creatinine clearance with a Cockcroft-Gault style calculation using age, sex, weight, and serum creatinine.
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Kidney function estimate
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Estimate creatinine clearance
Use age, sex, body weight, and serum creatinine to estimate creatinine clearance with the Cockcroft-Gault equation. This is a medication-dosing reference estimate and not a diagnosis.
Results
Creatinine clearance
112.5 mL/min
Interpretation
Normal or near-normal filtration estimate
How to use it
- 01Enter age, sex, body weight, and serum creatinine in mg/dL.
- 02Review the estimated creatinine clearance and the broad filtration band shown alongside it.
- 03Use the result as a support estimate when discussing medicines or kidney trends with a clinician.
Result guide
- Different renal equations can produce different values, so this page should not be treated as a full kidney-disease diagnosis tool.
- Drug dosing decisions may depend on the specific equation requested in the prescribing guidance.
- Rapid illness, unusual muscle mass, and fluid shifts can make creatinine-based estimates less reliable.
Why this page matters
Creatinine clearance tools are often used when checking kidney-related dose adjustments or screening renal function trends. That makes scope clarity important: this page is an estimate, not a full eGFR or nephrology workup.
Using age, weight, sex, and serum creatinine makes the result useful for planning conversations where Cockcroft-Gault style dosing guidance is still referenced.
Frequently asked questions
Is this the same as eGFR?
No. This page uses a creatinine-clearance style estimate, while lab-reported eGFR may use a different equation and different interpretation bands.
Should medication changes be made from this page alone?
No. Dosing and kidney-care decisions should follow clinician guidance, current labs, and the specific medicine reference being used.
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