An embodiment device for providing information for a hybrid electric vehicle includes a display device, a non-transitory memory, and a processor connected to the display device and the non-transitory memory, wherein the processor is configured to obtain travel distance information, fuel information, and battery information of the vehicle, and output, on the display device, battery charging proposal information based on at least one of an energy injection cost, a consumable replacement period, or energy balancing using the travel distance information, the fuel information, and the battery information of the vehicle.