A clothing management apparatus may include a display and a processor to, based on a state of a garment in an image of the garment, determine a management necessity of the garment, based on the management necessity, determine a management completeness that is expected when the garment is managed according to a management mode among a plurality of management modes, based on the management completeness, generate an expected image of the garment when the garment is managed according to the management mode, and control the display to display the expected image to a user.