A wireless device 30 according to the present invention includes a location information acquiring unit 31 configured to acquire location information of the wireless device; an estimated error value acquiring unit 33 configured to acquire an estimated error value of the acquired location information; a moving status determining unit 34 configured to determine a moving status of the wireless device; and a location determining unit 36 configured to determine a location where the wireless device exists, based on the acquired estimated error value and the determined moving status.