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## Body Surface Area (BSA) Calculator

## What is body surface area (BSA)?

BSA is an abbreviation for Body Surface Area, which is the surface area of the human body.

In the medical field, BSA is sometimes used to determine the dosage of drugs and to determine the extent of burns.

There are several calculation formulas, among which the Du Bois formula, the Shintani formula, and the Fujimoto formula are used.

## Formula for Body Surface Area (BSA)

BSA is calculated by the following formula.

### Du Bois formula

BSA(m^{2}) = Height^{0.725}(m) x Body weight^{0.425}(kg) x 0.007184

### Shintani formula

BSA(m^{2}) = Height^{0.725}(m) x Body weight^{0.425}(kg) x 0.007358

### Fujimoto formula

BSA(m^{2}) = Height^{0.663}(m) x Body weight^{0.444}(kg) x 0.008883

- ･Calculation of basal metabolic rate (BMR)
- ･Calculate basal metabolic rate (from weight and body fat percentage)
- ･Calculation of total daily energy expenditure (TDEE)
- ･Calculate BMI
- ･BMI and height
- ･Calculation of infant obesity (Kaup index)
- ･Calculation of the degree of obesity (Laurell index) of children and students
- ･Calculation of beauty weight and Cinderella weight
- ･Calculation of weeks of pregnancy (from the first day of the last menstrual period)
- ･Calculation of weeks of pregnancy (from due date)
- ･Due date calculator
- ･Body Surface Area (BSA) Calculator