Calculate your GFR Value

GFR Calculator

ml/min/1.73 m²
You have Stage 1 Chronic Kidney Disease
You have Stage 2 Chronic Kidney Disease
You have Stage 3 Chronic Kidney Disease
You have Stage 4 Chronic Kidney Disease
You have Stage 5 Chronic Kidney Disease
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What Stage Am I In?

There are five stages of kidney disease. Your glomerular filtration rate (GFR)–considered by medical professionals to be the best measure of kidney function–lets kidney care experts figure out your stage of kidney disease. Understanding it can help you learn how to take control and slow the progression of your condition. Determining your GFR levels requires a simple blood test. Use this GFR Calculator tool to help you determine which stage of kidney disease you are in currently.

What Your GFR Result Means

Completely healthy kidney function is measured at a GFR of around 100, which means that the kidneys are working at 100 percent. Your kidney function is still considered normal if the GFR number is 90 or greater. If your GFR is 45, you know that your kidneys are working at approximately 45 percent of the normal rate.