Body fat measuring device which features: several electrodes (HR, HL, BU1 - BU4, BL1 - BL4, FR, FL, FR', FL') to establish contact with predetermined areas of the surface of the body of a
test subject; a body impedance measurement unit (12) which measures a body impedance of the body of the
test subject using the multiple electrodes (HR, HL, BU1 - BU4, BL1 - BL4, FR, FL, FR', FL'); a
torso width measurement unit (13) for measuring the
torso width and
torso depth of the
test subject; and a body
fat mass calculation unit (14) which calculates a body
fat mass based on the body impedance measured by the body impedance measurement unit (12) and the
trunk width and
trunk depth measured by the
trunk width measurement unit (13), wherein the multiple electrodes include at least dorsal surface electrodes (BU1 - BU4, BL1 - BL4) for establishing contact with the surface of a dorsal area corresponding to a surface on the dorsal side of the trunk area of the test subject; wherein the body fat measuring device further comprises a frame-shaped mounting unit (100A) capable of being arranged in such a way that, during an attached state, it surrounds the trunk area of the test subject in order to bring the back surface electrodes (BU1 - BU4, BL1 - BL4) into contact with the back surface of the test subject in a pressurized state; wherein the back surface electrodes (BU1 - BU4, BL1 - BL4) are provided in an exposed state on a surface of the mounting unit (100A - 100G); wherein the
fuselage width detection unit (24A) is provided in the mounting unit (100A - 100G); wherein the multiple electrodes further comprise
upper limb electrodes (HR, HL) to establish contact with the surfaces of the upper limbs of the test subject; and wherein the
upper limb electrodes (HR, HL) are provided in an exposed state on the surface of the application unit (100A - 100G).