Kidney Function Calculator
Easily estimate kidney function and CKD stage with our free online calculator designed for healthcare professionals and clinicians.

Check It Yourself
About This Tool
The kidney function calculator leverages the latest KDIGO guidelines to estimate Glomerular Filtration Rate (eGFR) based on user-provided serum creatinine, age, gender, race, and optional BUN levels. It’s an essential tool for clinicians, nephrologists, and researchers aiming to diagnose and stage Chronic Kidney Disease (CKD) accurately.
By inputting patient data, users receive a precise eGFR value and CKD staging, supporting early diagnosis and optimal treatment planning. The calculator employs well-established formulas such as CKD-EPI and MDRD, ensuring reliability and compliance with medical standards.
Designed with a user-friendly interface, the tool offers quick results, easy interpretation, and options for exporting or saving assessments. Its flexible design accommodates various regional settings and includes accessibility features for all users. Whether in clinics, hospitals, or research environments, this tool streamlines renal health evaluation efficiently and accurately.
How to Use
1. Enter serum creatinine value.
2. Input the patient's age and select gender.
3. Choose race if applicable.
4. Optionally, add BUN levels.
5. Click 'Calculate' to view results.
6. Review eGFR, CKD stage, and recommendations.

FAQs/Additional Resources
Find Quick Answers
What is eGFR and why is it important?
Which formulas does the calculator use?
Can I use this calculator for children?
What if some inputs are missing?
Is the tool compliant with medical standards?
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