Oman is about 18 times bigger than Swaziland.

Swaziland is approximately 17,364 sq km, while Oman is approximately 309,500 sq km, making Oman 1,682% larger than Swaziland. Meanwhile, the population of Swaziland is ~1.1 million people (2.6 million more people live in Oman).
This to-scale comparison of Swaziland vs. Oman uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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