How It Works
eGFR=142×min(SCr/k,1)^alpha×max(SCr/k,1)^−1.2×0.9938^age×1.012 if female. k=0.7 female or 0.9 male; alpha=−0.241 female or −0.302 male.
SCr uses mg/dL; µmol/L is divided by 88.4. Result is indexed to 1.73 m² body surface area.
Scope and Limitations
- Adult stable-creatinine estimate, not a kidney diagnosis, medication dose or substitute for clinical assessment. Not applicable to acute/rapidly changing creatinine. Combined creatinine/cystatin-C equations may be more accurate; trends and urine albumin also matter.
Reference Sources
FAQs
How does this calculator work?
eGFR=142×min(SCr/k,1)^alpha×max(SCr/k,1)^−1.2×0.9938^age×1.012 if female. k=0.7 female or 0.9 male; alpha=−0.241 female or −0.302 male.
What assumptions should I check?
Adult stable-creatinine estimate, not a kidney diagnosis, medication dose or substitute for clinical assessment. Not applicable to acute/rapidly changing creatinine. Combined creatinine/cystatin-C equations may be more accurate; trends and urine albumin also matter. SCr uses mg/dL; µmol/L is divided by 88.4. Result is indexed to 1.73 m² body surface area.