4hpi - Free Printable Clinical Forms & Tools

GFR Calculator (MDRD & CKD-EPI Equations)





Male Female


GFR Calculator uses the MDRD and CKD-EPI equations.

MDRD (Modification of Diet in Renal Disease) equation:
GFR = 175 × (Serum Creatinine)^(-1.154) × (Age)^(-0.203) × (0.742 if female) × (1.212 if African American)

CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) equation:
GFR = 141 × min(Serum Creatinine/κ, 1)^α × max(Serum Creatinine/κ, 1)^(-1.209) × 0.993^(Age) × (1.018 if female) × (1.159 if African American)