- Understanding Chronic Kidney Disease
- Kidney Disease Stages
- How Kidneys Work
- What to Expect
- Managing Kidney Disease
- Take a FREE CLASS on Kidney Disease
Understanding Chronic Kidney DiseaseUnderstanding Chronic Kidney Disease
Use Our GFR Calculator
To calculate your eGFR, enter all fields below.
Based on your inputs, your eGFR value is
This eGFR value may indicate:
Stage 2 kidney disease
What is GFR?
Glomerular filtration rate (GFR) is a measurement of how well your kidneys are working to clean your blood. A calculation of your estimated glomerular filtration rate (eGFR) indicates your level of kidney function. Doctors use eGFR, along with other tests, to diagnose kidney disease, determine which stage you're in and track any progression.
How to calculate eGFR
Your eGFR is calculated using the results of a simple serum creatinine blood test, along with your age, ethnicity and gender. Weight and body size may also be factored in. Each of the stages of kidney disease has an eGFR range. Use the eGFR calculator to estimate which CKD stage you're currently in.
What do GFR test results mean?
Everybody is different, and the meaning of GFR test results can vary from person to person. To properly diagnose kidney disease and determine your stage, your doctor may also need to perform additional tests.
Knowing your eGFR and understanding which stage you're in can help you take steps to preserve kidney function and track any progression.
WHAT’S A NORMAL GFR RANGE?
The GFR normal range is typically 90 or higher, though this can vary by age. Stage 1 CKD also has an eGFR range of 90 or higher because kidney damage is minimal at this stage. Therefore, additional tests will be performed by your doctor to help confirm a CKD diagnosis.Learn about CKD Tests