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Free Kidney Function Tool

eGFR Calculator (Kidney Function)

Estimate your kidney function (eGFR) using the CKD-EPI 2021 equation - many cancer and critical-care medicines need a kidney check before dosing.

Calculate your eGFR

Serum creatinine from a recent blood test, in mg/dL (to convert from micromol/L, divide by 88.4).

This calculator provides a general estimate only (CKD-EPI 2021 equation) and is not a diagnosis. Always consult your doctor about your kidney function and any medicine dosing.

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Frequently asked questions

eGFR (estimated Glomerular Filtration Rate) estimates how well your kidneys are filtering blood, measured in mL/min/1.73m^2. Many cancer and critical-care medicines are cleared through the kidneys, so doctors often check eGFR before deciding on a dose.

This eGFR calculator is provided for general informational purposes only and is not a diagnosis. Critical Kare Pharma does not provide medical advice; always consult a qualified doctor or pharmacist about your kidney function and any medicines you may need.