Serbia is about 21 times smaller than Iran.

Iran is approximately 1,648,195 sq km, while Serbia is approximately 77,474 sq km, making Serbia 4.7% the size of Iran. Meanwhile, the population of Iran is ~86.8 million people (80.0 million fewer people live in Serbia).
This to-scale comparison of Iran vs. Serbia uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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