A system and method for calibrating a forward-facing camera or sensor of a vehicle is provided. The system includes a calibration tool, the position of which can be adjusted on the vehicle to align a presentation screen of the calibration tool with the vehicle camera. A processor performs a method to determine the size and position of a calibration target to be displayed on the presentation screen, based on a position of the calibration tool relative to the vehicle camera and generates a calibration target image to be digitally transmitted to the presentation screen. The presentation screen displays the calibration target image at an appropriate height, angle, and distance from the camera or sensor being calibrated.