Body Surface Area (BSA) Calculator
Medicine & Clinical ToolsCalculate body surface area using the Mosteller formula, commonly used for medication dosing.
Body Surface Area
Estimated body surface area in square meters, using the Mosteller formula, commonly used for chemotherapy and other dosing calculations.
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Odeh AhwalBased on 3 sources
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Calculator Stats
Creators
Odeh AhwalBased on 3 sources
0people find this calculator helpful
Views
Helpful
Saved
Embeds
Medicine & Clinical Tools calculators
Frequently Asked Questions
Why is body surface area used instead of weight alone for some medications?
BSA-based dosing, common in oncology, accounts for both height and weight together, which can correlate more closely with metabolic rate and organ function than weight alone, particularly relevant for narrow therapeutic index medications like chemotherapy.
What is the Mosteller formula?
The Mosteller formula is a simplified, widely used method for estimating BSA from height and weight, valued for its computational simplicity while remaining clinically accurate compared to more complex historical formulas.
What is an average adult body surface area?
Average adult BSA is commonly cited as approximately 1.7 square meters, though it varies significantly based on individual height and weight.
Sources
- Simplified calculation of body-surface area, PubMed (NEJM, Mosteller RD, 1987)
- Body Surface Area, StatPearls / NCBI Bookshelf (NIH)
- BMI Calculator (Body Mass Index and BSA), MDCalc
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