Body Surface Area Averaged

$BSA_"vCalc Average" = muf( "h" , "w" )$

$(h)"height"$

$(w)"weight"$

The Math / Science

There are several common formulae for human body surface area

The Mosteller formula is as follows;
$BSA = sqrt((h*w)/3600)$

The Gehan and George body surface area equation is as follows:
BSA = 0.0235 * h^0.42246 * w^0.51456

The Boyd body surface area formula is as follows:
$BSA = 0.03330⋅w^(0.6157−0.0188⋅log10(w))⋅h^0.3$

The Haycock formula is as follows:
BSA = 0.024265 * h^0.3964 * w^0.5378

The Fujimoto formula is as follows:
BSA = 0.008883* h^0.663* w^0.444

The Takahira formula is as follows:
BSA = 0.007241* h^0.725* w^0.425

The Wang Hihara formula is as follows:
$BSA = sqrt((w * h)/3537)$

The vCalc Average BSA is the mean of the above formula.

BSA is used in physiology and medicine. The default input units are centimeters (cm) for height and kilograms (kg) for weight, and meters squared (m²). However, the calculator provides automatic conversions for both the inputs and outputs to other (e.g. English) units via the pull-down menus. To change to English units, click on the button at the right side of the height(h) input field with cm and scroll down to another unit such as inches. You can then enter the height in inches and the conversion will be made for you. You can do the same for weight (w) by clicking on the kg field and scroll down to pounds. Again the conversion will be made for you.

Other methods	Height	Weight	Gender
Mosteller	x	x
Gehan and George	x	x
Boyd	x	x
DuBois	x	x
Haycock	x	x
Fujimoto	x	x
Takahira	x	x
Schlick	x	x	x
Costeff		x
Wang Hihara	x	x

Demographics

The mean (average) body surface areas for different demographics are listed below. To compare a BSA with one of these click HERE:

0.25 m²- Neonate
0.5 m² - 2 Year Old Child
1.07 m² - 9 Year Old Child
1.14 m² - 10 Year Old Child
1.33 m² - 12 to 13 Year Old Child
1.6 m² - Woman
1.9 m² - Man

Body Surface Area Averaged

The Math / Science

Demographics

Other BSA Calculators