A system for estimating the location of vehicles in parking lots. The system includes a reading device to capture data related to license plates of the cars circulating through the inside of the parking lot through a plurality of control points, and a detection device to record the availability of the spaces through a plurality of sensors. The system also includes an input device to manually enter the license plate of a car to be located inside the parking lot, a location device to locate the vehicle by a control mechanism, based at least on the previously recorded information by the reading device and detection device, and an output device to generate a report with the spaces in which the vehicle is most likely parked.