Belgium is about 1.6 times smaller than Slovakia.

Slovakia is approximately 49,035 sq km, while Belgium is approximately 30,528 sq km, making Belgium 62.26% the size of Slovakia. Meanwhile, the population of Slovakia is ~5.4 million people (6.4 million more people live in Belgium).
This to-scale comparison of Slovakia vs. Belgium uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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