eGFR Kidney Function Calculator
Uses the CKD-EPI 2021 race-free equation.
About this calculator
eGFR estimates how well the kidneys filter blood using the 2021 CKD-EPI creatinine equation. It is not valid in children, pregnancy or sudden kidney injury.
Results are for information only and are not a diagnosis. Consult a doctor for medical advice.
Frequently asked questions
What is a normal eGFR?
90 or above is normal; below 60 for three months or more suggests chronic kidney disease.
Does one low result mean kidney disease?
No. Results must be repeated and combined with a urine protein test.
Related reading
Diabetes and Kidney Disease: Symptoms, Tests, Prevention and Treatment
How diabetes damages the kidneys, early signs, the urine ACR and eGFR tests, how to slow diabetic kidney disease with blood sugar and blood pressure control, diet and safe medicines.