Body Surface Area (BSA) Calculator
Calculate the total surface area of a human body.
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Calculate Your Body Surface Area (BSA)
Our BSA Calculator estimates the total surface area of the human body, a key metric used in medicine for calculating drug dosages and assessing physiological functions.
What is a BSA Calculator?
A Body Surface Area (BSA) calculator is a tool used to estimate the total surface area of a person's body in square meters (m²). While it might seem like an abstract measurement, BSA is a crucial parameter in various medical fields. It is often a more accurate indicator of metabolic mass than body weight, making it essential for calculating the precise dosage of chemotherapy drugs, burn management, and certain other medications.
How It Works: The Du Bois Formula
Our calculator uses the most widely accepted formula for BSA calculation, the Du Bois formula:
BSA (m²) = 0.007184 × Height (cm)⁰.⁷²⁵ × Weight (kg)⁰.⁴²⁵You simply enter your height and weight, and the calculator applies this formula to provide an accurate estimate of your body's surface area.
Frequently Asked Questions
How is Body Surface Area (BSA) calculated?
BSA is most commonly calculated using the Du Bois formula, which uses a person's height and weight. The formula is: BSA (m²) = 0.007184 × Height (cm)^0.725 × Weight (kg)^0.425. Our calculator automates this calculation for you.
What is BSA used for in medicine?
Body Surface Area is frequently used in clinical settings to calculate the dosage of certain medications, particularly chemotherapy drugs. It is considered a more accurate indicator of metabolic mass than body weight alone.
What is a normal Body Surface Area?
The average BSA for an adult man is around 1.9 m², and for an adult woman, it is about 1.6 m². However, 'normal' BSA can vary widely depending on an individual's height and weight.
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