BSA Calculator – Body Surface Area
Calculate Body Surface Area (BSA) for clinical drug dosing, fluid requirements, and physiological evaluation using multiple standard formulas.
Input Parameters
Enter details for calculation.
Body Surface Area (BSA)
Expert Tip
Mosteller formula is widely preferred in clinical settings due to its simplicity and accuracy across pediatric and adult populations.
Calculation Methodology & Details
Formula
W is weight in kg, H is height in cm. BSA is expressed in square meters (m²). Imperial values are converted before calculation.
Important Disclaimer
The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
How BSA is Calculated
Follow these steps to use this calculator:
Select Measurement Units
Choose metric (kg/cm) or imperial (lbs/inches).
Enter Weight & Height
Input patient weight and standing height.
Choose Formula & Read BSA
Select the appropriate clinical formula and read the BSA result.
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ℹ️ About this Calculation
This health calculator provides accurate anthropometric assessment and body composition metrics. Designed for clinical evaluation, fitness tracking, and physiological monitoring based on validated health guidelines.
Variable Glossary
Body Measurements
Height, weight, circumferences, or fold measurements recorded following standardized clinical protocols.
Anthropometric Indexes
Key physiological ratios and thresholds used to evaluate body fat distribution and medical classification.
How to Calculate Step-by-Step
Step 1
Enter your exact physical measurements into the designated fields.
Step 2
Select appropriate measurement units (Metric or Imperial) and demographic parameters if applicable.
Step 3
Review your computed index, category classification, and recommendations instantly.