PROBLEM TO BE SOLVED: To output an indicator for achieving a target activity age.SOLUTION: A pedometer includes an activity amount-acquiring unit 11 that acquires the amount of activity of a person being measured, an indicator-acquiring unit 15 that acquires the indicator pertaining to the amount of activity, and an indicator-outputting unit 18 that outputs the acquired indicator. The indicator-acquiring unit 15 includes an activity age-acquiring unit 16 for acquiring the activity age using somatic information about the person being measured, which represents the standard age of people having the same amount of activity as the amount of activity acquired in a unit period of time. An indicator for achieving the target activity age is acquired on the basis of the acquired activity amount.COPYRIGHT: (C)2012,JPO&INPIT【課題】活動年齢の目標を達成するための指標を出力する。【解決手段】歩数計は、被測定者の活動量を取得する活動量取得部11と、活動量に関する指標を取得する指標取得部15と、取得される指標を出力する指標出力部18と、を備える。指標取得部15は、単位期間において取得される活動量と同じ量の活動をする人の標準年齢を表す活動年齢を、被測定者の身体情報を用いて取得するための活動年齢取得部16を含む。そして、取得される活動量に基づき、活動年齢の目標を達成するための指標を取得する。【選択図】図3