Ukraine is about 5 times bigger than Bulgaria.

Bulgaria is approximately 110,879 sq km, while Ukraine is approximately 603,550 sq km, making Ukraine 444% larger than Bulgaria. Meanwhile, the population of Bulgaria is ~6.9 million people (36.7 million more people live in Ukraine).
This to-scale comparison of Bulgaria vs. Ukraine uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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