Bulgaria is about 1.5 times smaller than Suriname.

Suriname is approximately 163,820 sq km, while Bulgaria is approximately 110,879 sq km, making Bulgaria 67.68% the size of Suriname. Meanwhile, the population of Suriname is ~639,850 people (5.8 million more people live in Bulgaria).
Tip: This to-scale comparison of Suriname vs. Bulgaria uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.