Disclosed is a computer-implemented method for augmented reality spinal rod planning and bending for navigated spine surgery. A proposed spinal rod is determined that is a virtual model of a spinal rod with a desired shape. The proposed spinal rod is determined based on acquired positions of a plurality of spinal screws disposed on a spine of a patient. The spinal screws are configured for receiving a spiral rod interconnecting the plurality of spinal screws. Furthermore, the spinal rod itself is calibrated for tracking by a medical navigation device. This allows displaying the proposed spinal rod by an augmented reality device, thereby overlaying the tracked spinal rod with the proposed spinal rod. Thus, the proposed method inter alia provides the surgeon with improved information about the bending state of the spinal rod.