Use our GFR calculators to estimate GFR for adults or children.
Cockcroft-Gault formula (use for drug research only)
To learn more about GFR estimating equations, and other means of assessing kidney function, visit the CKD Epidemiology Collaboration website at www.ckdepi.org
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.