Creatinine Clearance: Male, Age 40, 80 kg, Cr 0.9
A 40-year-old male weighing 80 kg with creatinine 0.9 mg/dL has a normal estimated creatinine clearance of approximately 114 mL/min.
How to use this tool
- Enter age, weight, serum creatinine and sex in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your creatinine clearance and the full breakdown beneath it.
Young adult males with normal creatinine typically have clearance well above 100 mL/min as shown in this example.
Frequently asked questions
- Which weight should I use?
- Use actual body weight if it is at or below ideal body weight. For obese patients, adjusted body weight (ABW) is often preferred; consult a pharmacist or physician for dosing decisions.
- How does CrCl differ from eGFR?
- Both estimate kidney function, but the CKD-EPI eGFR is normalised to 1.73 m² BSA and is preferred for CKD staging. CrCl from Cockcroft-Gault is preferred for drug dosing because most clinical trials used it to define dosing thresholds.