eGFR Calculator (CKD-EPI, MDRD, Cockcroft-Gault)

Calculate estimated GFR using CKD-EPI 2021 (race-free), MDRD, and Cockcroft-Gault equations. Classify CKD stage and provide medication dosing guidance.

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Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate estimated GFR using CKD-EPI 2021 (race-free), MDRD, and Cockcroft-Gault equations. Classify CKD stage and provide medication dosing guidance

Each component has a specific meaning:

  • CKD-EPI 2021 — The ckd-epi 2021 recorded for the patient or scenario being assessed.
  • MDRD — The mdrd recorded for the patient or scenario being assessed.
  • Cockcroft-Gault equations — The cockcroft-gault equations recorded for the patient or scenario being assessed.

Note: Interpret the egfr calculator result against the clinical thresholds and context described above.

How to Use

Enter the CKD-EPI 2021, MDRD, Cockcroft-Gault equations for the patient or scenario you are assessing. Calculate estimated GFR using CKD-EPI 2021 (race-free), MDRD, and Cockcroft-Gault equations. Classify CKD stage and provide medication dosing guidance. Use the egfr calculator result to inform your clinical assessment.

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Frequently Asked Questions