eGFR Calculator Estimated Glomerular Filtration Rate

eGFR Calculator Estimated Glomerular Filtration Rate calculator can be used to estimate the glomerular filtration rate (GFR) based on age, sex, race, serum creatinine, and optionally, body surface area.

Input Parameters

Calculation Results

Calculation Formula

eGFR = 141.082 × (Serum Creatinine)⁻¹.236 × (Age)⁻¹.209 × [1.018 if Female] × [1.159 if African American] × [0.994 if Body Surface Area is provided]

Where:
- Serum Creatinine is in mg/dL
- Age is in years
- eGFR is in mL/min/1.73m²

Estimated eGFR

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eGFR Calculator Estimated Glomerular Filtration Rate Calculator Usage Guide

Learn how to use the eGFR Calculator Estimated Glomerular Filtration Rate calculator and its working principles

How to Use the eGFR Calculator

  1. Enter the patient's age in years.
  2. Select the patient's sex.
  3. Select the patient's race.
  4. Enter the patient's serum creatinine level in mg/dL.
  5. If you know the patient's body surface area, enter it in m². This is optional.
  6. Click the "Calculate" button to estimate the eGFR.

Understanding the eGFR Result

The eGFR value is an estimate of the glomerular filtration rate, which measures how well the kidneys are filtering waste from the blood. The eGFR is expressed in mL/min/1.73m².

  • eGFR > 90: Normal kidney function
  • 60 ≤ eGFR ≤ 89: Mildly decreased kidney function
  • 30 ≤ eGFR < 60: Moderate to severe kidney function impairment
  • eGFR < 30: Kidney failure