Country size comparison
compared to
Swaziland is about 1.8 times smaller than Belgium.
Belgium is approximately 30,528 sq km, while Swaziland is approximately 17,364 sq km, making Swaziland 56.88% the size of Belgium. Meanwhile, the population of Belgium is ~11.8 million people (10.7 million fewer people live in Swaziland).
Compare further: Swaziland vs. Belgium