A travelable distance calculation method for a vehicle, the vehicle including an arithmetic unit,
- the travelable distance calculation method comprising
- (i) calculating, by the arithmetic unit, a travelable distance of a target vehicle using at least one of first data and second data, and a usage ratio between the first data and the second data, the first data including an energy consumption history of a target vehicle, the energy consumption history including one of a fuel consumption history and an electricity consumption history, the second data including the energy consumption history of a plurality of vehicles other than the target vehicle,
- (ii) setting, by the arithmetic unit, the usage ratio between the first data and the second data according to an operation of a user of the target vehicle when the arithmetic unit calculates the travelable distance of the target vehicle, and
- (iii) displaying, via a display device, the travelable distance calculated by the arithmetic unit, wherein
- the display device is configured to display an image that allows the user to select a traveling condition,
- the second storage device is configured to store the second data for each traveling condition of the plurality of vehicles,
- the arithmetic unit is configured to calculate the travelable distance of the target vehicle using second data corresponding to the traveling condition selected by the user,
- the display device is configured to display at least one of a distribution of the second data corresponding to the traveling condition selected by the user and a distribution of travelable distances of the plurality of vehicles showing a number of vehicles corresponding to each travelable distance calculated by using the second data corresponding to the traveling condition selected by the user, and
- the display device is configured to display the distribution such that a first range is larger than a second range, the first range being a range of the distribution displayed on the display when a deviation is equal to or larger than a predetermined level, the second range being a range of the distribution displayed on the display when the deviation is less than the predetermined level, and the deviation being a deviation between actual energy consumption history of the target vehicle and an energy consumption history calculated according to a setting by the user.