An objective is to provide a body measurement device capable of carrying out a body measurement, such as of abdominal girth or chest girth, with a simple configuration which eliminates moving components. This body measurement device comprises: light projection devices (2) which project linear light beams so as to encircle a measurement subject (H) within a measurement plane image capture devices (3a, 3b, 3c) which are positioned on the perimeter of the measurement subject (H) such that the total circumference of the linear light beams which are projected upon the measurement subject (H) are captured, and the optical axis of each respective image capture optical assembly is positioned in an oblique direction with respect to the measurement plane a database (5) which, with the measurement plane divided into respective measurement ranges of the image capture devices (3a-3c), associates two-dimensional coordinates with respect to captured images of the image capture devices (3a-3c) with two-dimensional coordinates with respect to the measurement plane and a computing device (4) which, with the measurement plane divided into the respective measurement ranges of the image capture devices (3a-3c), queries the database (5) from two-dimensional coordinates of a point with respect to the linear light beams with respect to the captured images of the respective image capture devices (3a-3c) corresponding to the measurement plane, identifies two-dimensional coordinates with respect to the measurement plane, and computes a circumference of a body surface of the measurement subject (H) with respect to the measurement plane.Linvention vise à proposer un dispositif de mensurations apte à réaliser une mensuration, telle que du tour de taille ou du tour de poitrine, à laide dune configuration simple qui élimine les éléments mobiles. Ce dispositif de mensurations comprend : des dispositif de projection de lumière (2) qui projettent des faisceaux lumineux linéaires de façon à encercler
