This calculator estimates an individual’s glomerular filtration rate (GFR) using serum creatinine, age and sex in the Chronic Kidney Disease – Epidemiology Collaboration (CKD-EPI) 2009 equation 1 (see Equations section below).

It is expressed as mL/min/1.73 m2 (indexed to a standardised body surface area [BSA] of 1.73 m2).

Use of estimated glomerular filtration rate (eGFR) calculated using the CKD-EPI 2009 equation (eGFRCKD-EPI) is recommended by the International Consensus Guideline in Anticancer Drug Dosing in Kidney Dysfunction (ADDIKD) and endorsed by international nephrology groups, for assessment of kidney function except when a directly measured GFR* is clinically necessary. 
*directly measured GFR (mGFR) refers to a direct measurement of the clearance of exogenous markers such as  iohexol, iothalamate, 51Cr-EDTA or 99mTc-DTPA and is expressed in mL/min. 

Disclaimer: The Cancer Institute NSW does not warrant or represent that the Information is free from errors or omission. Furthermore, changes in circumstances after the time of publication of the Information may impact on the accuracy of the Information. The information provided is a guideline to standard practice and not a substitute for clinical judgement. Use is subject to eviQ’s disclaimer available at

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14 Jul 2024