Glomerular Filtration Rate (GFR)


Use our GFR calculators to estimate GFR for adults or children.

GFR Calculator

Pediatric GFR Calculator

Cockcroft-Gault formula (use for drug research only)

Kidney Failure Risk Equation

eGFR Calculator App for iPhone/iPad

To learn more about GFR estimating equations, and other means of assessing kidney function, visit the CKD Epidemiology Collaboration website at


Click here to access frequently asked questions about GFR estimates. The list of FAQs are organized into three general topics: measurement of kidney function, interpretation of GFR estimates and chronic kidney disease.

Summary of the MDRD Study and CKD-EPI Estimating Equations