CKD Epi Calculator
A free online tool to estimate kidney function and stage CKD accurately using NKF guidelines, designed for healthcare professionals and researchers.

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About This Tool
Our CKD Epi Calculator provides healthcare professionals, researchers, and medical students with an accurate way to estimate kidney function based on serum creatinine, age, sex, and race. Utilizing the latest NKF-recommended formulas like CKD-EPI and MDRD, the tool helps determine CKD stages quickly and reliably. It supports inputs in both mg/dL and μmol/L, automatically converting units for seamless use. The calculator displays estimated GFR (eGFR), classifies CKD stage (1 to 5), and offers interpretive notes, guiding clinical decisions. It's designed with a clean, user-friendly interface suitable for desktop and mobile, ensuring accessibility and efficiency. Additional features include result export options, calculation history, and accessibility enhancements such as high contrast and keyboard navigation. Ideal for nephrologists, primary care physicians, and medical researchers, this tool streamlines kidney health monitoring and epidemiological studies. By providing instant, precise estimates, it aids in early detection, patient education, and tracking disease progression over time. Its compliance with NKF guidelines ensures it remains aligned with current clinical standards.
How to Use
1. Enter serum creatinine value.
2. Select your patient's sex, race, and age.
3. Choose your preferred units (mg/dL or μmol/L).
4. Click 'Calculate CKD Stage' to view results.
5. Optional: export results or review history.

FAQs/Additional Resources
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What is the purpose of the CKD Epi calculator?
Which formulas does the calculator use?
Can I use inputs in μmol/L?
Is this tool suitable for research use?
How is CKD stage determined?
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