GFR Calculator (eGFR)

Estimate your kidney function using the clinically recognized CKD-EPI equation.

Clinical Parameters

Serum Creatinine

Age

yrs

Biological Sex

Male Female

Stage	Description	GFR Range
Stage 1	Normal or High	≥ 90
Stage 2	Mildly Decreased	60 - 89
Stage 3a	Mild to Moderate	45 - 59
Stage 3b	Moderate to Severe	30 - 44
Stage 4	Severely Decreased	15 - 29
Stage 5	Kidney Failure	< 15

Fast Facts

The 2021 CKD-EPI formula is the current clinical standard for kidney health assessment.

A waste product from muscle metabolism. Kidneys filter it from the blood; high levels often indicate reduced filtration rate.

This updated formula is race-neutral and provides a more equitable estimation of kidney function for all patients.

For informational purposes only. Results should be interpreted by a qualified healthcare provider.

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GFR Calculator (eGFR)

What is Creatinine?

2021 Standard

Medical Disclaimer

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