Your coach should have a label in it that lists the coach weights and ratings as it came from the factory. You may find the label stuck to the inside of a closet door. The value most useful to answer your question is "UVW," Unloaded Vehicle Weight.
The RV Safety and Education Foundation has a Web page (link here
) with definitions, including UVW. Here is the definition:
UVW (Unloaded Vehicle Weight - used after 2008)
The weight of a vehicle when built at the factory with full fuel, engine (generator) oil and coolants and the weight of full propane containers. It does NOT include the weight of a full fresh water tank.