Body Surface Area Calculator
Calculate your body surface area for medical dosing
Share:
Your current body weight
Your height in centimeters
About This Tool
Calculate your Body Surface Area (BSA) using the Du Bois and Mosteller formulas. BSA is used in medical settings to calculate medication dosages, chemotherapy drugs, and other clinical parameters. It's more accurate than body weight alone for determining appropriate drug doses, especially for pediatric and oncology patients.
Frequently Asked Questions
What is Body Surface Area (BSA)?
Body Surface Area is the total surface area of the human body. It's used in medicine to calculate drug dosages, especially for chemotherapy, pediatric medications, and other treatments where dosage needs to be precise based on body size rather than just weight.
Why is BSA used for medication dosing?
BSA correlates better with metabolic rate and organ size than body weight alone. This makes it more accurate for determining appropriate drug doses, particularly for medications with narrow therapeutic windows like chemotherapy drugs.
What's the difference between Du Bois and Mosteller formulas?
The Du Bois formula (0.007184 × weight^0.425 × height^0.725) is the most widely used in clinical settings. The Mosteller formula (√(height × weight / 3600)) is simpler and often used in pediatric settings. Both give similar results for most adults.
Is BSA calculation accurate for all body types?
BSA formulas work well for most people but may be less accurate for extremes of body composition (very muscular or obese individuals). In clinical practice, healthcare providers may adjust doses based on other factors.
Related Tools
Get Weekly Health Tips
Join 226+ tool users. Receive evidence-based Indian nutrition tips, new tool launches & seasonal Ayurvedic guides.
No spam, ever. Unsubscribe anytime.