Body Surface Area (BSA) Calculator (Mosteller & Du Bois)
Calculates patient Body Surface Area (m²) using both Mosteller and Du Bois equations for clinical dosing and renal indexing.
⚠️ Educational Calculation & Clinical Safety Safeguard: Check oncology protocol specifications on whether BSA is capped at 2.0 m² or calculated on actual body weight. Educational calculations do not replace clinician assessment, patient-specific laboratory monitoring, or institutional prescribing protocols.
Interactive Calculator
Allowed physiological/compounding range: 30 to 240 cm
Allowed physiological/compounding range: 1 to 250 kg
Calculated Output (m² (Mosteller & Du Bois))
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Step-by-Step Mathematical Derivation & Explanation:
Validated Formula & Conversion Rules
Mosteller BSA (m²) = √([Height(cm) × Weight(kg)] / 3600); Du Bois BSA = 0.007184 × Height(cm)^0.725 × Weight(kg)^0.425Worked Clinical Example
Height 160 cm, Weight 90 kg: Mosteller BSA = √(14400 / 3600) = √4 = 2.00 m².
Rounding Rules, Assumptions & Source References
- Rounding Rule: Round BSA to 2 decimal places (m²).
- Clinical Assumptions & Limitations: Validated only within the stated physiological input boundaries. For paediatric, renal (Cockcroft-Gault), and critical-care infusion calculations, always cross-check against official product labelling and institutional guidelines.
- Source References: Indian Pharmacopoeia (IP 2022), National Formulary of India (NFI), British National Formulary (BNF), and NCBI Bookshelf Clinical Pharmacology Compendia.