Creatinine Clearance: Female, Age 75, 60 kg, Cr 1.2
A 75-year-old female weighing 60 kg with creatinine 1.2 mg/dL has an estimated creatinine clearance of approximately 35 mL/min, indicating moderate renal impairment.
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.
Elderly females often have significant renal decline despite near-normal creatinine; this scenario yields about 35 mL/min requiring careful drug dosing.
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.