DWG (AutoCAD Drawing) files, on the other hand, are a type of file used in Autodesk AutoCAD, a popular computer-aided design (CAD) software. DWG files contain 2D and 3D models, drawings, and other graphical elements created in AutoCAD. These files are widely used in the AEC industry and can be opened and edited in various software applications.
If you truly need online conversion, these work but cost money: rfa to dwg online convert free
Because the RFA format is proprietary to Autodesk, most reliable conversion methods require Autodesk software or specialized third-party tools rather than generic online converters. Autodesk Community, Autodesk Forums, Autodesk Forum DWG (AutoCAD Drawing) files, on the other hand,
Export an intermediate format from RFA (if you have Revit or can ask the author) DWG (AutoCAD Drawing) files