Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) Calculator



Patient Name:    Room:
Age:        Scr  


Program is based on the following:

GFR = 141 x min(Scr/κ,1)α x max(Scr/κ,1)-1.209 x 0.993Age x 1.018 [if female]
       x 1.159 [if black]

κ = 0.7 if female.
κ = 0.9 if male.

α = -0.329 if female
α = -0.411 if male

min = the minimum of Scr/κ or 1
max =  the maximum of Scr/κ or 1

"BACKGROUND:   Equations to estimate glomerular filtration rate (GFR) are routinely used to assess kidney function. Current equations have limited precision and systematically underestimate measured GFR at higher values." 1

"CONCLUSION:  The CKD-EPI creatinine equation is more accurate than the Modification of Diet in Renal Disease Study equation and could replace it for routine clinical use." 1


1. Levey AS, Stevens LA, Schmid CH, Zhang YL, Castro AF 3rd, Feldman HI, Kusek JW, Eggers P, Van Lente F, Greene T, Coresh J.  A New Equation to Estimate Glomerular Filtration Rate. Ann Intern Med. 2009; 150:604-612.
All calculations must be confirmed before use. The authors make no claims of the accuracy of the information contained herein; and these suggested doses are not a substitute for clinical judgment. Neither GlobalRPh Inc. nor any other party involved in the preparation of this program shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material.  PLEASE READ THE DISCLAIMER CAREFULLY BEFORE ACCESSING OR USING THIS SITE. BY ACCESSING OR USING THIS SITE, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS SET FORTH IN THE DISCLAIMER.   Read the disclaimer
more Career Center image description
Medical Calculators - A thru Z
Lab Values - A thru Z