MedCalcPro BSA & BMI Suite
8 Validated EquationsPatient Parameters
Real-time anthropometric calculation
Companion Anthropometric & Dosing Indices
Multi-Formula Scientific Comparison Matrix
Click any row to set activeSide-by-side evaluation of all 8 peer-reviewed BSA equations in m², ft², and variance against the Mosteller reference standard.
| Formula & Author | BSA (m²) | Relative Scale & Δ vs Mosteller |
|---|
BSA Medication & Oncology Dosing
Calculate patient-specific mg/m² dose with ASCO obesity/capping policies
Converts lab eGFR (mL/min/1.73m²) to patient's actual renal clearance (mL/min) via eGFR × (BSA / 1.73).
Anatomical Surface Map & Rule of Nines
Interactive regional surface area breakdown in m² & cm² (hover or tap body regions)
Clinical Reference Guide & Formula Selection Pearls
The Mosteller (1987) equation ($\sqrt{\text{Ht} \times \text{Wt} / 3600}$) is endorsed by NCCN and ASCO guidelines for chemotherapy dosing due to its mathematical simplicity and high concordance with Gehan & George (1970) and Du Bois (1916).
In infants and young children (where head-to-trunk surface ratios are higher), Haycock (1978) and Boyd (1935) were specifically validated down to premature neonates ($0.20\text{ m}^2$), whereas Du Bois can underestimate neonatal BSA by up to 8%.
ASCO clinical practice guidelines recommend using actual body weight (uncapped BSA) for most cytotoxic chemotherapy in obese patients, while select protocols still utilize a $2.0\text{ m}^2$ ceiling or 40% Adjusted Body Weight.