Which formula is most accurate?

Du Bois formula is widely used, but Mosteller is often recommended for children.

What is the average BSA?

Average is about 1.9m² for adult males and 1.6m² for adult females.

Can it be used for medical purposes?

Use as a reference only. Always consult a doctor for medical decisions.

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Body Surface Area Calculator

Calculate body surface area (BSA) from height and weight. Supports multiple formulas including Du Bois, Mosteller, and more.

Formula

Du Bois Formula

0.007184 × H^0.725 × W^0.425

Mosteller Formula

√(H × W / 3600)

Haycock Formula

0.024265 × H^0.3964 × W^0.5378

Gehan-George Formula

0.0235 × H^0.42246 × W^0.51456

H = Height (cm), W = Weight (kg), Unit: Square Meters (m²)

Height (cm)

Weight (kg)

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How to Use

Step 1

Enter Height

Enter your height in cm or ft/in

→

Step 2

Enter Weight

Enter your weight in kg or lb

→

Step 3

View Result

BSA (m²) calculated by multiple formulas is displayed

✨

Features

Multiple Formulas

Compare Du Bois, Mosteller, Haycock, and other formulas

Unit Switching

Supports both metric and imperial units

Medical Reference

Explains standard BSA values and clinical applications

❓

FAQ

The surface area of human skin, used for drug dosage calculation and metabolic rate assessment.

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