City size comparison

compared to

San Diego is about 1.4 times bigger than Tokyo.

Tokyo is approximately 619 sq km, while San Diego is approximately 844 sq km, making San Diego 36% larger than Tokyo.
Tip: This to-scale comparison of Tokyo 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. Tokyo

Flip Comparison · See true size
See San Diego on top of Tokyo
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Cost of Living Comparison · 7 categories - 2026 data
Tokyo is 47.9% cheaper than San Diego
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