The calculator below provides results for some of the most popular formulas. Typically there is a 410 fold variation in drug clearance between. Cancer chemother rep 1970 54225 35. In physiology and medicine the body surface area is the measured or calculated surface area of a human body. Body surface area is used for a determining other medical measures. Bsa sqrt cmkg3600.
The result is in squared meters which easily be converted to square feet inches or yards as needed. Where height is in meters and mass is in kg. Estimation of human body surface area from height and weight. Direct measurement of bsa is difficult and as such many formulas have been published that estimate bsa. The mosteller formula 1 bsa m2 sqrt height cm x weight kg 3600 eg. In the body the epidermis makes up the outermost layer and the surface area is essentially a measurement of how much exposed skin the body has.
You can estimate the body surface area on an adult that has been burned by using multiples of 9. Below are the body surface area formula by drs mosteller dubois and dubois haycock and boyd. The calculator below computes the total surface area of a human body referred to as body surface area bsa. Optional medication dose calculator. Average body surface area for adult women. The journal of pediatrics 1978 93162 66.
The growth of the surface area of the human body. The body surface area is used for numerous medical measures including medication calculation and the amount of fluids administered iv. 020247 x height m0725 x mass kg0425. Renal function for instance is measured by gfr relative to the body surface area. A height weight formula validated in infants children and adults. Other medical measures are used for the bsa.
Gehan ea george sl. Nevertheless there have been several important critiques of the use of bsa in determining the dosage of medications with a narrow therapeutic index such as chemotherapy. The area of the surface or surface area is the number of square units measured in inches feet yards miles etc needed to completely cover the surface of the object. Average body surface area for children 9 years. Weight pounds kilograms height 1 2 3 4 5 6 7 0 1 2 3 4. Average body surface area for children 12 13 years.
Estimating body surface area bsa to estimate your body surface area our bsa calculator uses the following formula 1. The body surface area formula. Enter height weight then click calculate. Average body surface area for children 10 years. Body surface area calculator. An adult who has been burned the percent of the body involved can be calculated as follows.
Geometric method for measuring body surface area. For many clinical purposes bsa is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass. As an example if both legs 18 x 2 36 the groin 1 and the front chest and abdomen were burned this would involve 55 of the body.
Gallery of Body Surface Measurement
