A body fat measurement device includes: hand electrodes that make contact with both hands; back area electrodes that makes contact with the surface of the back area side of the trunk area; foot electrodes that make contact with both feet; a body impedance measurement unit that measures a body impedance in a body using these multiple electrodes; and a body fat mass calculation unit that calculates a body fat mass based on the body impedance measured by the body impedance measurement unit. The foot electrodes that make contact with both feet are provided on a platform unit in an exposed state, and the hand electrodes that make contact with both hands and the back area electrodes that make contact with the surface of the back area side of the trunk area are all provided on a fitting unit in an exposed state.