Country size comparison
compared to
Svalbard is about 1.8 times smaller than Bulgaria.
Bulgaria is approximately 110,879 sq km, while Svalbard is approximately 62,045 sq km, making Svalbard 55.96% the size of Bulgaria. Meanwhile, the population of Bulgaria is ~6.9 million people (6.9 million fewer people live in Svalbard).
Compare further: Svalbard vs. Bulgaria