GFR (Kidney Function) Calculator
Calculate your estimated Glomerular Filtration Rate (eGFR) using the CKD-EPI equation. Assess kidney function and determine CKD stage.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Estimated GFR
87.4 mL/min/1.73m²
How to Use This Calculator
- Enter Age, Serum Creatinine, and Sex.
- Set Male, Female, and Race.
- Adjust Black, Other (Non-Black) as needed.
- Review the Estimated GFR (mL/min/1.73m²) result.
- Use CKD Stage and Interpretation to inform your decision.
How the result changes with Serum Creatinine
| Serum Creatinine | Estimated GFR |
|---|---|
| 1.59 | 49.9 mL/min/1.73m² |
| 5.31 | 11.6 mL/min/1.73m² |
| 9.79 | 5.5 mL/min/1.73m² |
| 14 | 3.6 mL/min/1.73m² |
What each input means
- Age
- Your current age in years.
- Serum Creatinine
- Blood creatinine level from your lab results.
- Sex
- Biological sex for calculation accuracy.
- Race
- Race factor used in CKD-EPI 2009 equation.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersAge = 50, Serum Creatinine = 1, Sex = 0, Race = 1 = 4 input(s) provided
- Calculate Estimated GFREstimated GFR87.4 = 87.4
- Calculate CKD Stage2 = 2
- Calculate InterpretationMildly decreased kidney function = Mildly decreased kidney function
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