Greece is about 1.4 times smaller than Oklahoma.

Oklahoma is approximately 177,847 sq km, while Greece is approximately 131,957 sq km, making Greece 74.2% the size of Oklahoma. Meanwhile, the population of Oklahoma is ~3.8 million people (6.8 million more people live in Greece).
This to-scale comparison of Oklahoma vs. Greece uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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