Country size comparison
compared to
Belgium is about 1.8 times bigger than Swaziland.
Swaziland is approximately 17,364 sq km, while Belgium is approximately 30,528 sq km, making Belgium 76% larger than Swaziland. Meanwhile, the population of Swaziland is ~1.1 million people (10.7 million more people live in Belgium).
Compare further: Belgium vs. Swaziland