Estimated Glomerular Filtration Rate Calculator (eGFR CKD-EPI 2021)
Clinical renal function audit. The 2021 CKD-EPI equation (Inker et al. NEJM) is the international medical standard for Chronic Kidney Disease staging (KDIGO G1 to G5 stages) without racial bias.
Input Parameters
Instant Calculation Result
Adjust values on the left to calculate live results.
In-Depth Guide & Mathematical Methodology
🫘 KDIGO Clinical CKD Staging Categories
Stage G1 (≥ 90 mL/min/1.73m²): Normal or high kidney function with albuminuria markers.
Stage G2 (60 - 89): Mildly decreased kidney function.
Stage G3a (45 - 59): Mild to moderate decrease.
Stage G3b (30 - 44): Moderate to severe decrease.
Stage G4 (15 - 29): Severely decreased kidney function.
Stage G5 (< 15): Kidney Failure / End-Stage Renal Disease (ESRD).
Frequently Asked Questions (FAQ)
What is the Estimated Glomerular Filtration Rate Calculator (eGFR CKD-EPI 2021) and how does it work?
Clinical renal function audit. The 2021 CKD-EPI equation (Inker et al. NEJM) is the international medical standard for Chronic Kidney Disease staging (KDIGO G1 to G5 stages) without racial bias.
How do I use this Estimated Glomerular Filtration Rate Calculator (eGFR CKD-EPI 2021)?
Select patient biological sex. Enter age in years. Enter serum creatinine level in mg/dL from lab results. View calculated eGFR in mL/min/1.73m² and official KDIGO renal function tier.
What mathematical formula is used in this calculation?
2021 CKD-EPI Equation (Inker et al. NEJM 2021): eGFR = 142 × (min(Scr/κ, 1)^α) × (max(Scr/κ, 1)^-1.200) × (0.9938^Age) × SexFactor. KDIGO Stages: G1 (≥90), G2 (60-89), G3a (45-59), G3b (30-44), G4 (15-29), G5 (<15 Kidney Failure).
Is the Estimated Glomerular Filtration Rate Calculator (eGFR CKD-EPI 2021) on FindCalculator free to use?
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