An information provision device has a history information storage part configured to sequentially acquire at least one of traveling location information, power consumption information and charging location information from an in-vehicle device mounted on a vehicle including an electric motor as a driving source for storing as traveling history information, a planned route acquisition part configured to acquire a planned route from a starting position to a destination, a provided route determination part configured to refer to the traveling history information stored in the history information storage part and determine a provided route that is as same as or similar to the planned route acquired by the planned route acquisition part from traveling routes along which the vehicle traveled, and a provided information determination part.