Country size comparison
compared to
Bulgaria is about 6 times bigger than Swaziland.
Swaziland is approximately 17,364 sq km, while Bulgaria is approximately 110,879 sq km, making Bulgaria 539% larger than Swaziland. Meanwhile, the population of Swaziland is ~1.1 million people (5.8 million more people live in Bulgaria).
Compare further: Bulgaria vs. Swaziland