An information processing device can receive a positioning signal that is transmitted from a transmitting device. The information processing device includes an input reception unit for receiving an input of a destination and for identifying first location information including fir floor number information, the first floor number information indicating a floor number of the destination in a structure including the destination, a retrieval unit for retrieving second location information including second floor number information from the positioning signal, the second floor number information indicating a floor number on which the transmitting device is provided in a structure in which the transmitting device is provided, and a calculation unit for calculating a route from a current location of the information processing device to the destination by using the first location information and the second location information.