A navigation apparatus mounted in a vehicle configured to execute route guidance using (i) a map data, which is ready-made, and (ii) a learned road data, the learned road data recording a learned road that is generated based on a travel track that ranges from a position located when a present position of the vehicle separates from an existing road in the map data or an already registered learned road already recorded in the learned road data up to a position located when a present position of the vehicle returns to an existing road in the map data or an already registered learned road already recorded in the learned road data, the navigation apparatus being characterized by comprising: a guidance section configured to present an exit path guidance relative to an exit path of a guidance target via which the vehicle is to exit from a rotary intersection at a predetermined time point when a designated guidance route is to pass through the rotary intersection and exit from the rotary intersection via the exit path of the guidance target; and a determination section configured to determine whether an exit path of a guidance target by the guidance section for exiting from the rotary intersection corresponds to (i) an existing road stored in the map data or (ii) a learned road recorded in the learned road data, the guidance section being further configured to execute an exit path guidance in line with a rotary intersection guidance of a predetermined mode based on the map data when the exit path of the guidance target is determined to correspond to an existing road stored in the map data, the predetermined mode being an exit port number mode that presents an exit port number of the exit path of the guidance target, out of exit port numbers which are assigned to exit paths of a plurality of existing roads included in the rotary intersection, and to execute an exit path guidance in line with a rotary intersection guidance of a learned road guidance mode different from the predetermined mode when the exit path of the guidance target is determined to correspond to a learned road recorded in the learned road data, the learned road guidance mode presenting a position of the exit path of the guidance target without presenting an exit port number corresponding to the learned road, out of exit port numbers which are assigned to exit paths of a plurality of existing roads included in the rotary intersection. a guidance section configured to present an exit path guidance relative to an exit path of a guidance target via which the vehicle is to exit from a rotary intersection at a predetermined time point when a designated guidance route is to pass through the rotary intersection and exit from the rotary intersection via the exit path of the guidance target; and a determination section configured to determine whether an exit path of a guidance target by the guidance section for exiting from the rotary intersection corresponds to (i) an existing road stored in the map data or (ii) a learned road recorded in the learned road data, to execute an exit path guidance in line with a rotary intersection guidance of a predetermined mode based on the map data when the exit path of the guidance target is determined to correspond to an existing road stored in the map data, the predetermined mode being an exit port number mode that presents an exit port number of the exit path of the guidance target, out of exit port numbers which are assigned to exit paths of a plurality of existing roads included in the rotary intersection, and to execute an exit path guidance in line with a rotary intersection guidance of a learned road guidance mode different from the predetermined mode when the exit path of the guidance target is determined to correspond to a learned road recorded in the learned road data, the learned road guidance mode presenting a position of the exit path of the guidance target without presenting an exit port number corresponding to the learned road, out of exit port numbers which are assigned to exit paths of a plurality of existing roads included in the rotary intersection.