Abstract: A body composition measurement system (10) comprises: a body composition obtaining section (363) that obtains measured values of body composition of a user; and a positioning information determination section (364) that obtains positioning information, which is information indicating a position of the measured value of the user in a population. The body composition obtaining section (363) obtains the measured values by measuring the body composition of the user. The positioning information determination section (364) determines the positioning information using a positioning calculation formula or a positioning table stored in the memory unit (35). The positioning calculation formula or positioning table is prepared for each category such as age, gender, race, sport type, company, etc. The positioning information determination section (364) selects any category to determine the positioning information.