In Sydney, for example, the average cost of a hotel room is around $300 per night, while in Melbourne the average is around $250 per night. In regional areas, such as Cairns or Darwin, the average cost of a hotel room can be as low as $100 per night.
If you're looking for a more affordable option, you might consider staying in a hostel or backpackers, where prices can be as low as $20 per night. Airbnb and other home-sharing platforms can also be a good option for budget travelers, with prices ranging from $50-$100 per night.