eGFR Calculator (CKD-EPI 2021)

Enter the patient’s age in completed years. This equation is intended for adults.

Select the sex variable required by the published CKD-EPI 2021 creatinine equation.

Choose the unit used for the serum creatinine result.

Serum creatinine is used with age and sex to estimate glomerular filtration rate in the CKD-EPI 2021 equation.

Accepted units

• µmol/L
• mg/dL

Used by

• eGFR (CKD-EPI 2021) Calculator

Clinical note
Interpret creatinine in context. Acute changes, muscle mass, diet and some medicines can affect the result and the reliability of creatinine-based eGFR.

Reference
Inker LA et al. N Engl J Med. 2021;385:1737–1749.