Free · Health · Clinical Estimates

GFR Calculator

Estimate adult glomerular filtration rate with the race-free 2021 CKD-EPI creatinine equation.

  • Checked formula
  • Private in your browser
  • No signup
Calculator inputs

Enter your values

Result

Your calculation

Estimated GFR
67 mL/min/1.73 m²
G2 range
Creatinine used
1 mg/dL

eGFR alone does not diagnose chronic kidney disease. Interpretation requires clinical context, repeat testing, and often urine albumin measurement.

How to use this calculator

  1. Enter current measurements as accurately as practical.
  2. Calculate to see the estimate, range, and method details.
  3. Use the result as context, and discuss health decisions with a qualified clinician.

Use the result with context

Health results are educational estimates, not a diagnosis or treatment recommendation. A qualified clinician can interpret measurements in the context of your health.