No. Australia is large, but it is slightly less than the area of the continental US.
https://www.aboutaustralia.com/australia-size-compared-to-us...
Area of Australia = 2.97M sq mi Area of USA = 3.78M sq mi Area of Europe = 3.92M sq mi Area of Canada = 3.85M sq mi
Area of mainland Australia = 2.93M sq mi.
I think this is the apples to apples comparison. Don't include Alaska or Tasmania, or Hawaii, which tend not to be what people are thinking of.
No. Australia is large, but it is slightly less than the area of the continental US.