Abstract: Systems and methods for predicting towing fuel economy are provided. The method may comprise generating a calibration map. The calibration map may correlate a towing fuel economy factor to a ratio of ATrailer/AVehicle versus a ratio of MTrailer/MVehicle, and ATrailer is a frontal area of a trailer, AVehicle is a frontal area of a vehicle, MTrailer is a mass of the trailer, and MVehicle is a mass of the vehicle. The method may comprise calculating the towing fuel economy factor from the calibration map, calculating a towing range, using the towing fuel economy factor, and calculating a towing distance to empty, using the towing range.