Calculate Your Kidney Function
Find out if your kidneys are working right. It's easier than you think! What you learn can help you stay healthy or get treatment if you need it. Get smart about your kidneys. Get tested. And, take control of your health.
What Is Your GFR?
GFR stands for Glomerular Filtration Rate. It is a measure of how well the filters in your kidneys (glomeruli) are working. Learn more about GFR.
Find Your eGFR
You can use this calculator to get an estimate of your GFR (called eGFR)—and learn if you might have kidney disease.
4 Facts You Need
Caution: eGFR calculator results may not be accurate if you are older than 70, younger than 18, vegetarian, pregnant, very overweight, very muscular, or have a serious illness.