Body surface area
Estimate body surface area using the Mosteller formula.
Apply an entered age/sex-adjusted clinical coefficient to serum creatinine for educational comparison.
Apply an entered age/sex-adjusted clinical coefficient to serum creatinine for educational comparison.
Serum creatinine (mg/dL): 1; Equation coefficient supplied by clinician/lab: 100.
Illustrative eGFR: 100 mL/min/1.73m².
This is deliberately not a diagnostic CKD-EPI calculator. Laboratories use validated equations with age and sex terms; use the reported laboratory eGFR and consult a clinician.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Apply an entered age/sex-adjusted clinical coefficient to serum creatinine for educational comparison. The displayed figures use the inputs and formula shown on this page.
Use the kidney egfr planning to compare a scenario, check an estimate, or verify a manual calculation.
| Input | What to enter |
|---|---|
| Serum creatinine (mg/dL) | Enter a number of at least 0.000001 and no more than 1000000000000. |
| Equation coefficient supplied by clinician/lab | Enter a number of at least 0.000001 and no more than 1000000000000. |
This is deliberately not a diagnostic CKD-EPI calculator. Laboratories use validated equations with age and sex terms; use the reported laboratory eGFR and consult a clinician.
It is exact for the stated mathematical model and entered values. Real-world results can differ when rates, timing, fees, definitions or measurement conditions differ.