Qatar is about 4.9 times smaller than Croatia.

Croatia is approximately 56,594 sq km, while Qatar is approximately 11,586 sq km, making Qatar 20.47% the size of Croatia. Meanwhile, the population of Croatia is ~3.9 million people (903,985 fewer people live in Qatar).
Tip: This to-scale comparison of Croatia vs. Qatar uses the Mercator projection, which distorts the size of regions near the poles.
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