Work out GFR
eGFR estimates kidney filtration from serum creatinine, age and sex; it is an estimate and should be interpreted with clinical context.
Formula: CKD-EPI 2021 uses 142 × min(Scr/k,1)^α × max(Scr/k,1)^−1.200 × 0.9938^Age × sex factor.
Enter age, body measurements, dates, or activity choices exactly as requested. These calculators estimate a result from the inputs rather than directly measuring a physical condition.
Repeat the calculation with the same values to confirm the output, then review the unit and method before interpreting the number.
Important: This calculator is provided for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Results are estimates based on the information entered and the method used. If you have a medical concern or are making a health-related decision, consult a qualified healthcare professional.