eGFR (estimated Glomerular Filtration Rate) estimates how much blood your kidneys filter each minute. It is calculated from creatinine, age and sex.
- Normal range (adults)
- 90 or above mL/min/1.73m²
- Sample
- Blood
- Fasting
- Not usually needed
- Also called
- Estimated GFR, Glomerular Filtration Rate, eGFR Creatinine, GFR Estimated, Est GFR, GFR, eGFR, Estimated Glomerular Filtration Rate
eGFR normal range
| Group | mL/min/1.73m²Same unit in all countries |
|---|---|
| Adults | 90 or above |
60–89 can be normal in older adults if there is no other sign of kidney damage. Below 60 for 3 months or more indicates chronic kidney disease.
Ranges vary slightly between laboratories. The range printed on your own report is the one to go by.
Why is the eGFR test done?
It is used to stage chronic kidney disease and to adjust medicine doses.
What does a low eGFR level mean?
A low eGFR means reduced kidney function. Below 60 for three months or more indicates chronic kidney disease; below 15 is kidney failure. It declines naturally with age.
Common causes
- Diabetes
- High blood pressure
- Kidney infections or inflammation
- Polycystic kidneys and inherited conditions
- Long-term painkiller use
- Dehydration (temporary)
Diet and lifestyle tips
- Control blood sugar and blood pressure
- Limit salt
- Avoid painkillers such as ibuprofen and diclofenac
- Do not take high-protein or herbal supplements without advice
- In more advanced stages, your doctor or dietitian may advise limiting potassium, phosphate and protein
When should you see a doctor?
An eGFR below 60, or any drop from your usual level, should be reviewed by a doctor with a urine albumin test.
Last updated
This page is for general education and is not a diagnosis. Normal ranges differ between laboratories, so always compare your result with the reference range printed on your own report, and discuss abnormal results with your doctor.