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. The calculator below computes the total surface area of a human body referred to as body surface area bsa. Average body surface area for children 9 years. Weight pounds kilograms height 1 2 3 4 5 6 7 0 1 2 3 4. Direct measurement of bsa is difficult and as such many formulas have been published that estimate bsa. Enter height weight then click calculate.
Bsa sqrt cmkg3600. Average body surface area for children 10 years. Body surface area calculator. Cancer chemother rep 1970 54225 35. An adult who has been burned the percent of the body involved can be calculated as follows. Where height is in meters and mass is in kg.
Body surface area is used for a determining other medical measures. 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. Average body surface area for children 12 13 years. You can estimate the body surface area on an adult that has been burned by using multiples of 9. The calculator below provides results for some of the most popular formulas. Optional medication dose calculator.
Typically there is a 410 fold variation in drug clearance between. The growth of the surface area of the human body. Renal function for instance is measured by gfr relative to the body surface area. Estimation of human body surface area from height and weight. The body surface area is used for numerous medical measures including medication calculation and the amount of fluids administered iv. Below are the body surface area formula by drs mosteller dubois and dubois haycock and boyd.
Average body surface area for adult women. Other medical measures are used for the bsa. The result is in squared meters which easily be converted to square feet inches or yards as needed. For many clinical purposes bsa is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass. Gehan ea george sl. 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.
The journal of pediatrics 1978 93162 66. The mosteller formula 1 bsa m2 sqrt height cm x weight kg 3600 eg. 020247 x height m0725 x mass kg0425. Geometric method for measuring body surface area. In physiology and medicine the body surface area is the measured or calculated surface area of a human body. Estimating body surface area bsa to estimate your body surface area our bsa calculator uses the following formula 1.
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. A height weight formula validated in infants children and adults. The body surface area formula.