Oman is about 699 times bigger than Antigua and Barbuda.

Antigua and Barbuda is approximately 443 sq km, while Oman is approximately 309,500 sq km, making Oman 69,828% larger than Antigua and Barbuda. Meanwhile, the population of Antigua and Barbuda is ~94,209 people (5.4 million more people live in Oman).
Tip: This to-scale comparison of Antigua and Barbuda vs. Oman uses the Mercator projection, which distorts the size of regions near the poles.
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