Adult 2021 CKD-EPI Creatinine eGFR Calculator
Estimate adult eGFR using the race-free 2021 CKD-EPI creatinine equation.
Your result
FITNESS & HEALTHEnter your values and select calculate.
On this page How it works & practical examples
How to use the Adult 2021 CKD-EPI Creatinine eGFR Calculator
Estimate adult eGFR using the race-free 2021 CKD-EPI creatinine equation. Creatinine should use an IDMS-traceable laboratory method; µmol/L is converted to mg/dL by dividing by 88.4.
The calculation
Worked example
A 50-year-old using male parameters with creatinine 1.0 mg/dL gives approximately 91.6915 mL/min/1.73 m².
Assumptions and limits
Not a kidney-disease diagnosis, measured GFR or medication dosing tool. Not validated here for children, acute non-steady kidney function or pregnancy. Muscle mass and other factors affect creatinine; clinician interpretation and sometimes cystatin C improve assessment.
Common questions
Which inputs should I use?
Estimate adult eGFR using the race-free 2021 CKD-EPI creatinine equation. Creatinine should use an IDMS-traceable laboratory method; µmol/L is converted to mg/dL by dividing by 88.4.
What does the result exclude?
Not a kidney-disease diagnosis, measured GFR or medication dosing tool. Not validated here for children, acute non-steady kidney function or pregnancy. Muscle mass and other factors affect creatinine; clinician interpretation and sometimes cystatin C improve assessment.