What is Estimated Glomerular Filtration Rate (eGFR)?

Estimated glomerular filtration rate (eGFR) is a measure of how well your kidneys filter blood. It is calculated using your serum creatinine. There are five stages of kidney disease. Your clinician knows your stage of kidney disease based on the presence of kidney damage and your eGFR, which is a measure of your kidney function. Your treatment is based on your stage of kidney disease.
Stages of Kidney Disease
Stage Description Estimated Glomerular Filtration Rate (eGFR)*
1 Kidney damage with normal or increased eGFR 90 or above
2 Kidney damage with mild decrease in eGFR 60 to 89
3 Moderate decrease in eGFR 30 to 59
4 Severe decrease in eGFR 15 to 29
5 Kidney failure Less than 15
*Your eGFR number tells your healthcare team how much kidney function you have.
As chronic kidney disease progresses, your eGFR number decreases.