What is Body Surface Area?

Body Surface Area (BSA) is the measured or calculated surface area of a human body. In clinical medicine, BSA is considered a more accurate indicator of metabolic mass than body weight alone because it is less affected by abnormal adipose tissue.

Which BSA formula is most common?

The Mosteller formula is the most widely adopted clinical standard because of its simplicity and mathematical equivalence to more complex equations.

Body Surface Area Calculator

Calculate Body Surface Area (BSA) using Mosteller, Du Bois, Haycock, Gehan & George, or Boyd formulas.

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Parameters

R Reset

Unit System

WeightUse consistent units — imperial (lbs) or metric (kg).

2500

Height (cm)Average adult height: 163cm (women), 177cm (men).

175

30250

BSA Formula

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Body Surface Area (BSA)

1.84 m²

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Equation UsedMosteller

Mosteller Method1.84 m²

Du Bois Method1.85 m²

InterpretationThe calculated result is resolved at 1.84 m² based on the input parameters.

How to Use the Body Surface Area Calculator

Calculate your Body Surface Area (BSA) instantly using standard medical formulas. BSA is a biometric measurement representing the total surface area of a human body, commonly used in medicine to calculate precise dosages for chemotherapy and other critical drugs. Enter your height and weight to compare clinical methodologies.

Input variables:

Unit System: Bounded parameter in the mathematical model.
Weight: Bounded parameter in the mathematical model.
Height (cm): Bounded parameter in the mathematical model.
Height (Feet): Bounded parameter in the mathematical model.
Height (Inches): Bounded parameter in the mathematical model.
BSA Formula: Bounded parameter in the mathematical model.

Body Surface Area Calculator Explained: Formula, Math, and Precedence

Determine Body Surface Area and analyze outcomes with step-by-step working.

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