All calculations must be re-checked by hand and should not be used alone to guide patient care. See disclaimer for more. Light green = required. Once required data is entered, click anywhere for results.

Equations

Scores

MDRD GFR Calculator

Only for chronic kidney disease (CKD), not accurate for acute renal failure. Please also note that a recent study indicates the MDRD may underestimate the actual GFR in healthy patients by up to 29%.

  Units: US SI
Age years old
Serum Creatinine mg/dL
Patient is female. Yes
Patient is black. Yes
GFR ml/min/1.73 m2

GFR = 186.3 x SerumCr-1.154 * age-0.203 * 1.212 (if patient is black) * 0.742 (if female)

Levey AS, Greene T, Kusek JW, et al. A simplified equation to predict glomerular filtration rate from serum creatinine (Abstr) J Am Soc Nephrol 2000;(11):155A