Kidney Function & Clearance Calculator

Estimate kidney health metrics: Glomerular Filtration Rate (eGFR) via CKD-EPI 2021, and Creatinine Clearance (CrCl) via Cockcroft-Gault.

Cette page estime la clairance de la créatinine avec Cockcroft-Gault; confirmez les unités et le poids utilisé avant toute décision clinique.

Medical disclaimer: eGFR and CrCl are educational estimates only. Acute illness, pregnancy, extremes of body size, diet, medications, and lab method can change interpretation. Do not use this page for diagnosis, medication dosing, or treatment decisions without a licensed clinician.

Renal Function Lab Profile

Creatinine Clearance (CrCl)66 mL/min

Frequently Asked Questions

What is the CKD-EPI (2021) equation?

The CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) 2021 equation is the latest clinical standard for estimating GFR. It is race-free, relying solely on age, sex, and serum creatinine levels.

Why does Cockcroft-Gault require weight?

The Cockcroft-Gault equation estimates creatinine clearance (CrCl) to guide drug dosing. Creatinine is a waste product of muscle metabolism, so body weight serves as a surrogate marker for muscle mass.

What do the CKD stages mean?

Stages 1 to 5 categorize the severity of kidney impairment. Stage 1 represents normal function with some evidence of kidney damage, while Stage 5 indicates end-stage renal disease (ESRD), typically requiring dialysis or transplant.