Equatorial Guinea is about 11 times smaller than Oman.

Oman is approximately 309,500 sq km, while Equatorial Guinea is approximately 28,051 sq km, making Equatorial Guinea 9.06% the size of Oman. Meanwhile, the population of Oman is ~5.5 million people (3.6 million fewer people live in Equatorial Guinea).
Tip: This to-scale comparison of Oman vs. Equatorial Guinea uses the Mercator projection, which distorts the size of regions near the poles.
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