Australia vs Indonesia

Australia is 4.1 times larger than Indonesia — 7,741,220 against 1,904,569 km². Indonesia is 10 times more populous than Australia — 285,721,236 against 27,614,411 people.

Side by side

Population density

Indonesia is 42 times more densely populated than Australia — 150 against 4 people per km². Density is where area and population interact, and it often reverses the impression the headline figures give — a large country with a small population can feel emptier than a small crowded one by an enormous margin.

Practical differences

• Different currencies: the Australian dollar and the Indonesian rupiah.
• Australia spans 5 time zones, so "local time" there is not a single answer.
• Different continents — Oceania and Asia.

Australia

The sixth-largest country in the world and the only one that covers an entire continent. The Great Barrier Reef runs about 2,300 km and is the largest structure made by living organisms on Earth, visible from orbit. Around eighty percent of its mammals, reptiles and flowering plants exist nowhere else. Melbourne and Sydney are within roughly a hundred thousand people of each other, and which counts as the largest city depends on where the boundary is drawn.

Indonesia

The largest archipelago in the world: official surveys count more than 17,000 islands, of which around 6,000 are inhabited, spread over 5,100 km of ocean. Indonesia sits on the Pacific Ring of Fire and has about 130 active volcanoes, more than any other country. It also holds more of the world's remaining tropical peatland than anywhere except the Congo basin.

Neutral facts only. Nothing here addresses politics, government, economics or which country is preferable in any respect — population is the one figure that dates, and it carries its year.