Country size comparison

compared to

Macau is about 30 times smaller than San Diego.

San Diego is approximately 844 sq km, while Macau is approximately 28 sq km, making Macau 3.34% the size of San Diego.
Tip: This to-scale comparison of San Diego vs. Macau uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Macau vs. San Diego
Flip Comparison · See true size
See Macau on top of San Diego
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Cost of Living Comparison · 7 categories - 2026 data
San Diego is 85.8% more expensive than Macau overall
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