Body Surface Area Calculator Calculate BSA Instantly Online
Calculate your body surface area using height and weight. Our free BSA calculator uses standard medical formulas for accurate results.
Body Surface Area Calculator
Enter your height and weight to calculate your BSA.
Body Surface Area Formula
Body Surface Area is calculated using height and weight measurements. Medical professionals use BSA for medication dosing and treatment planning.
Mosteller Formula
The Mosteller formula is one of the most commonly used methods for calculating body surface area.
Du Bois Formula
The Du Bois formula is an older scientific method developed from body measurement studies.
How Body Surface Area Is Calculated
Body surface area represents the total external surface area of the human body. It is measured in square meters (m²) and provides a more accurate measurement than body weight alone for many medical calculations.
Our calculator uses height and weight values to estimate BSA using internationally accepted formulas.
Example Calculation
Clinical Uses of Body Surface Area
BSA calculations are commonly used in healthcare for various medical decisions.
Medication Dosage
Used for calculating doses of certain medicines including chemotherapy drugs.
Cardiology
Helps estimate cardiac indexes and related measurements.
Medical Research
Used in clinical studies and scientific calculations.
Treatment Planning
Supports personalized healthcare decisions.
Benefits of Using BSA Calculator
Quickly calculate body surface area without manual formulas.
Instant Results
Get BSA calculation within seconds.
Accurate Formula
Uses recognized medical equations.
Mobile Friendly
Works on all devices.
Free Tool
No registration required.
How To Calculate Body Surface Area
Calculate your BSA in three simple steps using height and weight measurements.
Enter Height
Enter your height in centimeters, meters or inches.
Enter Weight
Provide your body weight in kilograms or pounds.
Get BSA Result
The calculator instantly displays your body surface area in square meters.
Medical Information Disclaimer
This Body Surface Area calculator provides an estimate for educational purposes only. It should not replace professional medical advice, diagnosis or treatment decisions.
Healthcare professionals may use BSA calculations together with other clinical information when determining medication dosage and treatment plans.
What Is Body Surface Area (BSA)?
Body Surface Area (BSA) is the calculated measurement of the total surface area of the human body. It is usually expressed in square meters (m²) and is calculated using a person's height and weight.
Unlike body weight alone, BSA provides a more personalized measurement because it considers the relationship between body size and surface area.
Why Is BSA Important?
- ✓ Helps estimate medication dosage for certain treatments
- ✓ Used in medical research calculations
- ✓ Helps compare body measurements between individuals
- ✓ Used in some cardiac and oncology calculations
Body Surface Area Measurement Units
BSA is commonly measured in square meters (m²). An average adult BSA is approximately 1.7 to 2.0 m², although values vary depending on height, weight and body composition.
Frequently Asked Questions
Calculate Your Body Surface Area Today
Use our free BSA calculator to estimate body surface area quickly using standard medical formulas.
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