GFR Calculator
Estimate adult eGFR using the 2021 race-free CKD-EPI creatinine equation.
This page is an editable estimator with realistic defaults so you can model your own situation in minutes.
2021 CKD-EPI eGFRcr uses age, sex, and serum creatinine without a race coefficient.
Treat the result as a planning estimate and verify important numbers with the relevant official source before acting.
| Age | 50 years | |
|---|---|---|
| Sex | female |
Assumptions
- For adults only. This is not a kidney disease diagnosis.
- Confirm kidney function with a clinician and laboratory context.
How this calculator works
Formula used
2021 CKD-EPI eGFRcr uses age, sex, and serum creatinine without a race coefficient.
Example calculation
Plug in your own numbers and the result updates instantly. 2021 CKD-EPI eGFRcr uses age, sex, and serum creatinine without a race coefficient.
GFR Calculator FAQ
Is this gfr calculator medical advice?
No. It is an educational estimate only and should not be used to diagnose, treat, or make medical, nutrition, legal, or emergency decisions.
Why might my real result be different?
Age, sex, body composition, pregnancy, medications, medical conditions, training status, lab methods, and measurement accuracy can all change real-world results.
Should I check these results with a professional?
Yes. Confirm health, nutrition, fitness, kidney function, alcohol, or safety decisions with a qualified professional or official source.