GFR Calculator

Lab Values

Enter serum creatinine from a recent blood test (mg/dL). This calculator uses the 2021 CKD-EPI equation (creatinine only, no race variable).

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About eGFR

The glomerular filtration rate (GFR) is a measure of kidney function. The 2021 CKD-EPI creatinine equation is recommended by kidney societies and does not use race. Serum creatinine must be from a standardized lab. This calculator is not a substitute for medical advice or diagnosis.