How the Kidney Function (eGFR) Works
eGFR (estimated glomerular filtration rate) shows how well your kidneys filter blood. It is worked out from the creatinine value in your blood report, your age and your sex.
This calculator uses the CKD-EPI 2021 equation recommended by kidney specialists. An eGFR of 90 or more is normal; under 60 for three months or more means chronic kidney disease.
Want a doctor to look at your result? See our Nephrology specialists or book an appointment.
Our Nephrology Specialists
Specialists at Desun Hospital, Kolkata.
Dr Arkaprabha Chakraborty
Senior Consultant - Nephrologist
MBBS (Hons) · MD (General Medicine) · DM (Nephrology)
Dr Arkaprabha ChakrabortySenior Consultant - Nephrologist11:00 AM – 4:00 PMBook Dr Arkaprabha Chakraborty on Monday
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- Dr Saugat DasguptaConsultant - Nephrologist5:00 PM – 6:00 PMBook Dr Saugat Dasgupta on Tuesday
- Dr Arkaprabha ChakrabortySenior Consultant - Nephrologist11:00 AM – 4:00 PMBook Dr Arkaprabha Chakraborty on Wednesday
- Dr Saugat DasguptaConsultant - Nephrologist5:00 PM – 6:00 PMBook Dr Saugat Dasgupta on Wednesday
- Dr Arkaprabha ChakrabortySenior Consultant - Nephrologist11:00 AM – 4:00 PMBook Dr Arkaprabha Chakraborty on Thursday
- Dr Saugat DasguptaConsultant - Nephrologist5:00 PM – 6:00 PMBook Dr Saugat Dasgupta on Thursday
- Dr Atanu PalHead - Transplant Programme10:00 AM – 12:00 PMBook Dr Atanu Pal on Friday
- Dr Arkaprabha ChakrabortySenior Consultant - Nephrologist11:00 AM – 4:00 PMBook Dr Arkaprabha Chakraborty on Friday
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No OPD on Sunday. Pick another day, or call us for emergency care — open 24 × 7.
Timings can change on holidays — our team confirms your slot when you book.
Kidney Function (eGFR) — Questions
My eGFR is low. Do I need dialysis?
Dialysis is usually considered only when eGFR falls below about 15 with symptoms. Most people with a low eGFR need treatment to slow the damage, not dialysis.
Who should check eGFR every year?
Anyone with diabetes, high blood pressure, heart disease, a family history of kidney disease, or age over 60.