Route planning device and route planning system

A route planning device includes: a search means for searching for a plurality of facilities located near the minimum-cost route from a current position to the destination, where the battery can be charged; a guided route calculation means for setting a waypoint on the minimum-cost route via which the moving object can be guided to each facility, and for calculating a guided route from the waypoint to the each facility and a first power requirement indicating an amount of power required to travel through the guided route; and a facility designating means for designating a target facility to which the moving object is to be guided, based upon third power requirements each calculated by adding a second power requirement, indicating an amount of power required to allow the moving object to travel from the current position to the waypoint, to the first power requirement and remaining power in the battery.