eGFR Calculator
Estimate Glomerular Filtration Rate using the CKD-EPI equation (2021) or Cockcroft-Gault. Used to stage chronic kidney disease and dose renally-cleared medications.
Advertisement
Patient Information
Estimated GFR
—
mL/min/1.73m²
⚠️ eGFR estimates are for clinical reference. Always correlate with clinical presentation. CKD-EPI 2021 is race-free and recommended by KDIGO guidelines.
CKD Staging (KDIGO)
| Stage | eGFR | Description |
|---|---|---|
| G1 | ≥ 90 | Normal/high |
| G2 | 60–89 | Mildly decreased |
| G3a | 45–59 | Mild-moderate decrease |
| G3b | 30–44 | Moderate-severe decrease |
| G4 | 15–29 | Severely decreased |
| G5 | < 15 | Kidney failure |