Country size comparison

compared to

San Diego is about 367 times smaller than Oman.

Oman is approximately 309,500 sq km, while San Diego is approximately 844 sq km, making San Diego 0.27% the size of Oman.
Tip: This to-scale comparison of Oman vs. San Diego uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Diego vs. Oman

Flip Comparison · See true size
See San Diego on top of Oman
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Cost of Living Comparison · 7 categories - 2026 data
Oman is 49.0% cheaper than San Diego
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