Estimate your glomerular filtration rate (eGFR), a key measure of kidney function, from your age, gender and serum creatinine level using the 2021 CKD-EPI creatinine equation.
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This calculator uses the 2021 CKD-EPI creatinine equation, the current race-free standard recommended by the National Kidney Foundation and American Society of Nephrology, which estimates GFR from serum creatinine, age and gender using published coefficients that differ slightly for men and women.
GFR results are grouped into stages of chronic kidney disease (CKD): G1 (90+, normal), G2 (60-89, mildly decreased), G3a (45-59), G3b (30-44), G4 (15-29, severely decreased), and G5 (below 15, kidney failure). A single low result isn't a diagnosis, kidney function should be assessed by a healthcare provider using multiple readings and additional tests.
No, this is an estimate for informational purposes only, based on a single equation and a single lab value. Always consult a healthcare provider for an actual kidney function assessment.
It's reported on a standard blood test (a basic or comprehensive metabolic panel) as 'creatinine', usually in mg/dL.
The 2021 CKD-EPI equation removed race from the calculation to address concerns that earlier race-based versions could lead to inequities in diagnosis and care, and it's now the recommended standard.
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