Tools · Lab interpretation
eGFR calculator
Estimate your kidney function from a serum creatinine value using the 2021 CKD-EPI race-free equation — the same formula your nephrologist uses. Result stays on your device; nothing is sent.
Sex (biological)
How this number is used
eGFR drives your CKD stage, which in turn drives almost every diet and medication decision your nephrologist makes for you. It is an estimate — a single creatinine value can be high simply because you didn't drink enough water that morning. Always pair it with urine albumin and the trend over multiple labs.
Not medical advice. This tool helps you understand a lab result; it does not replace your nephrologist's judgement.