Niue is about 298 times smaller than Serbia.

Serbia is approximately 77,474 sq km, while Niue is approximately 260 sq km, making Niue 0.34% the size of Serbia. Meanwhile, the population of Serbia is ~6.5 million people (6.5 million fewer people live in Niue).
Tip: This to-scale comparison of Serbia vs. Niue uses the Mercator projection, which distorts the size of regions near the poles.
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