An apparatus for calibrating an ADAS sensor of an advanced driver assistance system of a vehicle positioned in a service area, comprising: - a base unit; - a support structure integral with the base unit; - a vehicle calibration assistance structure, mounted on the support structure and including a calibration device (41, 42) configured to facilitate aligning or calibrating the ADAS sensor of the vehicle; - a positioning system configured to aid with the relative positioning between the vehicle calibration assistance structure and the vehicle; characterized in that it comprises a computer, having access to a database and configured to: receive one or more input information items (113A, 113B, 113C), including a first input information item, relating to a second reference element of the vehicle positioned in the service area, a second input information item, regarding a type of ADAS sensor to be calibrated, and a third input information item regarding a type of the vehicle positioned in the service area; query the database to retrieve a reference parameter and a geometric parameter as a function of the one or more input information items (113A, 113B, 113C), wherein the reference parameter relates to a predetermined position of a calibration device to calibrate a predetermined ADAS sensor of the type according to the second input information item, the predetermined ADAS sensor corresponding to the ADAS sensor of the vehicle positioned in the service area, the predetermined position being referred to a first reference element of a vehicle of the type according to the third input information item, and wherein the geometric parameter relates to a geometric relation, for the type of vehicle according to the third input information item, between the first reference element and the second reference element, the second reference element being different from the first reference element; process the reference parameter and the geometric parameter to generate derived data relating to a reference position of the vehicle calibration assistance structure relative to the second reference element of the vehicle positioned in the service area. - a base unit; - a support structure integral with the base unit; - a vehicle calibration assistance structure, mounted on the support structure and including a calibration device (41, 42) configured to facilitate aligning or calibrating the ADAS sensor of the vehicle; - a positioning system configured to aid with the relative positioning between the vehicle calibration assistance structure and the vehicle; receive one or more input information items (113A, 113B, 113C), including a first input information item, relating to a second reference element of the vehicle positioned in the service area, a second input information item, regarding a type of ADAS sensor to be calibrated, and a third input information item regarding a type of the vehicle positioned in the service area; query the database to retrieve a reference parameter and a geometric parameter as a function of the one or more input information items (113A, 113B, 113C), wherein the reference parameter relates to a predetermined position of a calibration device to calibrate a predetermined ADAS sensor of the type according to the second input information item, the predetermined ADAS sensor corresponding to the ADAS sensor of the vehicle positioned in the service area, the predetermined position being referred to a first reference element of a vehicle of the type according to the third input information item, and wherein the geometric parameter relates to a geometric relation, for the type of vehicle according to the third input information item, between the first reference element and the second reference element, the second reference element being different from the first reference element; process the reference parameter and the geometric parameter to generate derived data relating to a reference position of the vehicle calibration assistance structure relative to the second reference element of the vehicle positioned in the service area.