eGFR Calculator

Estimate your glomerular filtration rate with the modern CKD-EPI 2021 equation and see which kidney disease stage your number falls into.

The CKD-EPI 2021 equation
eGFR = 142 × min(SCr/κ,1)^α × max(SCr/κ,1)^(-1.200) × 0.9938^age × 1.012 [if female]

The 2021 version dropped the race coefficient. It is most accurate when kidney function is stable.

🧪 CKD-EPI 2021

The current standard, no race coefficient.

📊 Stage map

G1–G5 with clinical meaning.

💊 Unit aware

mg/dL or μmol/L, auto-converted.

📖 Educational

Chronic means 3+ months, not one test.

More kidney & labs tools

Your labs, decoded.