Oman is about 1.5 times bigger than Kansas.

Kansas is approximately 211,900 sq km, while Oman is approximately 309,500 sq km, making Oman 46% larger than Kansas. Meanwhile, the population of Kansas is ~2.9 million people (911,230 more people live in Oman).
This to-scale comparison of Kansas vs. Oman uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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