Australia is about 4.5 times bigger than Queensland.

Queensland is approximately 1,729,742 km² (667,857 sq mi), while Australia is approximately 7,741,220 sq km, making Australia 348% larger than Queensland.
Tip: This to-scale comparison of Queensland vs. Australia uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.