Free Body Surface Area Calculator - Calculate BSA
Calculate body surface area using Du Bois, Mosteller, and other formulas. Used for medical dosing calculations.
Quick Answer
BSA (Body Surface Area) is used for drug dosing, especially chemotherapy. Du Bois formula: BSA = 0.007184 × Height^0.725 × Weight^0.425. Average adult BSA: 1.7 m² (women) to 1.9 m² (men).
Key Facts about Body Surface Area Calculator:
- Used for medication dosing, especially chemo
- Du Bois formula most common
- Mosteller formula simpler alternative
- Average adult: 1.7-1.9 m²
- More accurate than weight alone for dosing
- Multiple formulas may give slightly different results
Why Use Our Body Surface Area Calculator?
BSA calculation tools:
Multiple Formulas
Du Bois, Mosteller, and more.
Unit Conversion
Metric and imperial inputs.
Medical Use
Drug dosing applications.
Comparison
Compare formula results.
Instant Results
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How to Body Surface Area Calculator in 3 Easy Steps
Calculate BSA:
Enter Measurements
Height and weight.
Select Formula
Choose calculation method.
View Results
See BSA in m².
Why Use Our Calculator?
Medical-grade formulas
Multiple methods
Unit flexibility
Professional results
Common Use Cases for Body Surface Area Calculator
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Frequently Asked Questions
Everything you need to know about our body surface area calculator
What is BSA used for?
Drug dosing (especially chemo) - more accurate than weight alone.
BSA is primarily used for calculating drug doses, especially chemotherapy. It's more accurate than weight alone because it better reflects metabolic mass.
Which BSA formula is best?
Du Bois most common; Mosteller simpler. Follow institution standards.
Du Bois is most widely used. Mosteller is simpler and gives similar results. For clinical use, follow your institution's standard.
Still have questions? Try the tool yourself!
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