GFR Calculator

Estimate kidney function with CKD-EPI 2021 and MDRD equations.

Results

eGFR (CKD-EPI 2021)-
eGFR (MDRD)-
CKD Stage-
Description-

What is the GFR Calculator?

The GFR Calculator estimates your glomerular filtration rate, a key indicator of kidney function. It uses the CKD-EPI 2021 and MDRD equations based on serum creatinine, age, and gender.

How to Use

  1. Select your creatinine units (mg/dL or μmol/L).
  2. Enter your age, gender, and serum creatinine level.
  3. Click Calculate to see eGFR values and the corresponding CKD stage.

FAQ

What is a normal eGFR?

A normal eGFR is 90 mL/min/1.73m² or higher. Values below 60 may indicate reduced kidney function.

What are the CKD stages?

G1: �?0, G2: 60-89, G3a: 45-59, G3b: 30-44, G4: 15-29, G5: <15 mL/min/1.73m².

Should I use CKD-EPI or MDRD?

CKD-EPI 2021 is generally preferred for eGFR > 60, while MDRD is widely used in clinical settings. Both are provided for reference.

Is this a medical diagnosis?

No. This calculator is for informational purposes only. Always consult a healthcare provider for diagnosis and treatment.