eGFR Calculator
CKD-EPI 2021 Equation (Race-Free)
years
mg/dL
µmol/L
mg/dL
Estimated GFR
mL/min/1.73m²
CKD Stages (Reference)
- Stage 1 > 90 (Normal)
- Stage 2 60 – 89 (Mildly Decreased)
- Stage 3a 45 – 59 (Mild-Moderate)
- Stage 3b 30 – 44 (Moderate-Severe)
- Stage 4 15 – 29 (Severely Decreased)
- Stage 5 < 15 (Kidney Failure)