An augmented reality (AR) or virtual reality (VR) calibration method including the steps of: (a) providing a computing device for displaying a base image of a surrounding environment, (b) obtaining location coordinates of the computing device; (c) initiating an executable application program for processing location data and generating an overlay image over the base image; (d) generating a virtual asset container and at least one digital object corresponding to the computing device, (e) determining a first location of the computing device at a local position within the asset container; (e) moving the computing device to a second location that is a determined distance in a direction from the first location, and (f) calculating a local rotation angle relative to a positive axis of the asset container and a rotation angle relative to a positive axis of a real-world coordinate system to determine an orientation difference.