eGFR CKD-EPI Calculator
Calculate estimated glomerular filtration rate using the updated CKD-EPI 2021 equations (creatinine, cystatin C, or combined).
Important Health Disclaimer
This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.
For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.
Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.
Not a substitute for professional medical advice
Patient Information
About CKD-EPI 2021
The 2021 CKD-EPI equations removed the race coefficient to provide more equitable eGFR estimates. Combined creatinine-cystatin C equation is most accurate.
Estimated GFR (CKD-EPI 2021 Cr)
88.9
mL/min/1.73m²
G2 - Mildly Decreased
CrCl (C-G)
82.6
mL/min
Equation Used
CKD-EPI 2021 Cr
Interpretation
Mildly decreased kidney function. May be normal for age. Monitor annually.
CKD Stages
G1: ≥90 mL/min (Normal)
G2: 60-89 mL/min (Mild)
G3a: 45-59 mL/min (Mild-Moderate)
G3b: 30-44 mL/min (Moderate-Severe)
G4: 15-29 mL/min (Severe)
G5: <15 mL/min (Kidney Failure)
Disclaimer: eGFR is an estimate and may be inaccurate in certain populations (extremes of body size, muscle mass, diet). Always interpret in clinical context and consult nephrology for complex cases.
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