Takai and Shimaguchi developed an equation for predicting body surface area in young Japanese adult males. The authors are from Saga Medical School and Kitasato University in Japan.

Subject selection: Japanese males from 18 to 26 years of age



(1) body weight in kilograms

(2) body height in cm

(3) head circumference in cm


body surface area in square cm =

= (617 * ((body weight)^0.6667)) + (0.2453 * ((body height)^2)) + (0.6825 * ((head circumference)^2)) - 2142


body surface area in square meters =

= (body surface area in square cm) / 10000

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