What is the CKD-EPI equation?

CKD-EPI is a 2009 equation that estimates GFR from serum creatinine, age, and sex. It is widely used in clinical practice.

What creatinine unit can I use?

You can enter serum creatinine in mg/dL or μmol/L. The result is always in mL/min/1.73 m².

GFR (CKD-EPI)

Estimate kidney function with the CKD-EPI 2009 equation.

What this calculator does

This tool estimates how well your kidneys filter waste from the blood (kidney function) using the CKD-EPI equation. It uses your creatinine level, age, and sex.

What your result means

A lower number can mean reduced kidney function. Your doctor uses this along with other tests and your history to understand your kidney health. This estimate is for reference only.

This is not medical advice. A healthcare provider should interpret results in your context.

Serum creatinine (mg/dL)

Age (years)

Sex

Key terms

GFR: Glomerular filtration rate; the rate at which the kidneys filter blood (mL/min per 1.73 m²).
CKD-EPI: Chronic Kidney Disease Epidemiology Collaboration; a 2009 equation used to estimate GFR from creatinine, age, and sex.
Serum creatinine: A waste product in the blood; higher levels often indicate reduced kidney function.
mL/min/1.73 m²: Millilitres per minute per 1.73 m² body surface area; standard unit for reporting GFR.

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This tool is for educational and reference use only. It does not constitute medical advice. Always consult a healthcare professional for medical decisions.