Australia is about 4.7 times bigger than Iran.

Iran is approximately 1,648,195 sq km, while Australia is approximately 7,741,220 sq km, making Australia 370% larger than Iran. Meanwhile, the population of Iran is ~86.8 million people (60.6 million fewer people live in Australia).
This to-scale comparison of Iran vs. Australia uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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