The road distance from Rockhampton to Darwin is 2933km. Driving time is around 35 hours, so is best travelled over at least 4 days.
The distance between Maryborough and Rockhampton by road is 383 km. Travel time is around 4 hrs 30 mins.
From port Douglas to Rockhampton is a distance of about 1130 km, and would take around 14 hours of actual travelling time (without breaks).
From Gladstone to Biloela is a distance of 120km. Travel time is around 1 hr 45 mins.
4.5 hour flight 12 hour drive
It is 782 km from Rockhampton to Moree, travelling inland via Banana, Theodore, Condamine and Moonie. It is a full day's drive - about 12-14 hours.
The distance by air is 1765km from Darwin (Australia) to Denpasar (Bali). I think the air time is approximately 2 hours.
About an hour driving time
The driving distance from Darwin to Broome is around 2200 km. This trip is best undertaken over at least 6 days. It should also be avoided during the wet season, from November to April.
It is 990 km from Tennant creek in central Australia to Darwin. Travel time is around eight and a half hours (without breaks).
From Townsville to Gladstone is a distance of about 830 km, and takes about ten hours to travel.
It is 59 minutes of driving time according to MapQuest.
9 hours