Papua New Guinea is about 3.1 times bigger than Georgia.

Georgia is approximately 149,976 sq km, while Papua New Guinea is approximately 462,840 sq km, making Papua New Guinea 209% larger than Georgia. Meanwhile, the population of Georgia is ~9.7 million people (94,155 fewer people live in Papua New Guinea).
Tip: This to-scale comparison of Georgia vs. Papua New Guinea uses the Mercator projection, which distorts the size of regions near the poles.
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