City size comparison

compared to

San Diego is about 1.5 times smaller than Rome.

Rome is approximately 1,287 sq km, while San Diego is approximately 844 sq km, making San Diego 65.56% the size of Rome.
Tip: This to-scale comparison of Rome 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. Rome

Flip Comparison · See true size
See San Diego on top of Rome
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Cost of Living Comparison · 7 categories - 2026 data
Rome is 41.5% cheaper than San Diego
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