Oman is about 1.7 times bigger than Missouri.

Missouri is approximately 178,414 sq km, while Oman is approximately 309,500 sq km, making Oman 73% larger than Missouri. Meanwhile, the population of Missouri is ~6.0 million people (2.2 million fewer people live in Oman).
This to-scale comparison of Missouri vs. Oman uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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