Kidney Disease GFR Calculator

Enter your information below in the GFR calculator to find out what your kidney function is.

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Your GFR Result:

Why is your GFR important?

GFR is a measure of your percent kidney function. Knowing your GFR helps you learn how much kidney function you have so you can better protect your health. Using your GFR number, look below to see what stage of kidney disease you have. There are five stages of kidney disease. Stage one indicates a small amount of damage, and stage five happens when your kidneys have failed. Your stage of kidney disease depends on your GFR number.

Stage 1 Kidney disease GFR > 90

Kidney damage with normal GFR.

What can you do

  • Have your kidneys checked on a regular basis and know your numbers. By knowing your kidney function, you can better protect your health.
  • If you have diabetes, manage your blood sugars. Uncontrolled diabetes can also lead to heart disease, blood vessel disease, loss of limbs and blindness.
  • Watch your blood pressure. Managing your blood pressure is the single most important thing you can do to help prolong the life of your kidneys.
  • Maintain a healthy diet. A healthy diet will not only make you feel better, but it can also help slow your kidney disease down.
  • Stop smoking. Work with your doctor to find ways to help you quit.
  • Get moving. Excess weight puts increased stress on your kidneys, raises your blood pressure and increases your risk of diabetes – the leading cause of kidney disease.

Learn more about chronic kidney disease here.

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Stage 2 Kidney disease GFR 60-89

Kidney damage with normal GFR.

What can you do

  • Have your kidneys checked on a regular basis and know your numbers. By knowing your kidney function, you can better protect your health.
  • If you have diabetes, manage your blood sugars. Uncontrolled diabetes can also lead to heart disease, blood vessel disease, loss of limbs and blindness.
  • Watch your blood pressure. Managing your blood pressure is the single most important thing you can do to help prolong the life of your kidneys.
  • Maintain a healthy diet. A healthy diet will not only make you feel better, but it can also help slow your kidney disease down.
  • Stop smoking. Work with your doctor to find ways to help you quit.
  • Get moving. Excess weight puts increased stress on your kidneys, raises your blood pressure and increases your risk of diabetes – the leading cause of kidney disease.

Learn more about slowing down the progression of chronic kidney disease here.

Learn More

Stage 3 Kidney disease GFR 30-59

Mild to moderate loss of kidney function

What can you do

  • Have your kidneys checked on a regular basis and talk to your doctor about a referral to a nephrologist (kidney doctor) to help track kidney function.
  • Continue to manage your blood pressure and blood sugar.
  • Maintain a healthy diet and get regular exercise.
  • Ask your doctor about meeting with a renal dietitian. They can help you with a kidney-friendly diet.
  • Get support by reaching out to those around you. There are national and local patient support groups and organizations. Your family, friends, and faith groups are also good places to turn for encouragement.

Learn more about slowing down the progression of chronic kidney disease.

Learn More

Stage 4 Kidney disease GFR 15-29

Severe kidney disease

What can you do

  • Talk to your doctor about treatment options including home dialysis and transplant.
  • If you are considering dialysis, ask your doctor about the placement of an access and when that might be right for you. Planning ahead helps you get the kind of care you want.
  • Consider taking a class or scheduling a tour of a local dialysis center to learn more.
  • Continue to manage your blood pressure and blood sugar.
  • Maintain a healthy diet and get regular exercise.
  • Ask your doctor about meeting with a renal dietitian. They can help you with a kidney-friendly diet.
  • Get support by reaching out to those around you. There are national and local patient support groups and organizations. Your family, friends, and faith groups are also good places to turn for encouragement.

Learn more about slowing down the progression of chronic kidney disease and your treatment options.

Learn More

Stage 5 Kidney disease GFR 0-14

End-stage renal disease

What can you do

  • Talk to your doctor about treatment options including home dialysis and transplant.
  • Choose the treatment option that is best for you and be ready to start treatment when it is time by having your access in place.
  • Talk with a financial benefits coordinator if you have concerns about how to pay for treatment.
  • Consider taking a class or scheduling a tour of a local dialysis center to learn more.
  • Continue to manage your blood pressure and blood sugar.
  • Maintain a healthy diet and get regular exercise.
  • Get support by reaching out to those around you. There are national and local patient support groups and organizations. Your family, friends, and faith groups are also good places to turn for encouragement.

Learn more about how dialysis works.

Learn More