241 free calculators · math, finance, health, and everyday utilities No sign-up required · Runs in your browser
Calculator.casa / Health / GFR (Kidney Function) Estimator
Health

GFR (Kidney Function) Estimator

Estimate glomerular filtration rate — for general education, not diagnosis.

mg/dL
years
GFR (Kidney Function) Estimator

How this calculator works

GFR estimates kidney filtering function and is a key marker for kidney disease staging — this is a simplified educational version; real clinical use requires lab-verified creatinine and a validated calculator with your full demographic inputs, interpreted by a doctor.

Formula

simplified CKD-EPI 2009 equation (male, non-Black demo values)