* Unloaded Tractor (Class 8): 15,000 - 20,000 lbs (6,804 - 9,072 kg)
* Unloaded 53' Trailer: 10,500 - 13,000 lbs (4,763 - 5,897 kg)
* Unloaded Tractor and Trailer: 25,500 - 33,000 lbs (11,567 - 14,969 kg)
* Average Gross Weight: 80,000 lbs (36,287 kg)
The weight of a tractor trailer rig can vary significantly depending on the size and type of the tractor and trailer, as well as the cargo being carried. However, the average gross weight of a tractor trailer rig in the United States is 80,000 lbs (36,287 kg). This includes the weight of the tractor, trailer, cargo, and fuel.
