GFR Calculator (eGFR)

Your details

Use an IDMS-standardized laboratory result. Normal adult range is roughly 0.6-1.2 mg/dL (53-106 micromol/L). Higher creatinine means lower eGFR.
mg/dL
The 2021 CKD-EPI equation is validated for adults aged 18 and older.
years
Biological sex affects the kappa and alpha constants in the 2021 CKD-EPI equation. Select the sex recorded for the lab reference range used.
eGFRG1 - Normal
94.6mL/min/1.73 m²

Estimated glomerular filtration rate (2021 CKD-EPI creatinine)

KDIGO StageG1 - Normal or High
Estimated kidney function95%
94.6 mL/min/1.73 m²
G5 Failure<15G4 Severe15-30G3b Mod-Severe30-45G3a Mild-Mod45-60G2 Mild60-90G1 Normal90+

eGFR 94.6 mL/min/1.73 m² - KDIGO Stage G1

  • An eGFR of 94.6 mL/min/1.73 m² is in the normal or high range (G1). Kidney function is intact, though kidney damage may still be present if there is protein in the urine, blood in the urine, or structural abnormalities.
  • At this level, routine monitoring (annual creatinine and urine albumin test) is appropriate for people with risk factors like diabetes or hypertension.
  • Normal serum creatinine for a male adult is approximately 0.7-1.2 mg/dL (62-106 micromol/L). Higher muscle mass raises creatinine without changing true GFR, so eGFR from creatinine alone can overestimate or underestimate function in people with unusual muscle mass.

Next stepAsk your doctor about a urine albumin-to-creatinine ratio (ACR) test to check for protein in the urine, which is an early sign of kidney damage even when eGFR is normal.

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