Country size comparison

compared to

Japan is about 448 times bigger than San Diego.

San Diego is approximately 844 sq km, while Japan is approximately 377,915 sq km, making Japan 44,676% larger than San Diego.
Tip: This to-scale comparison of San Diego vs. Japan uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Japan vs. San Diego
Flip Comparison · See true size
See Japan on top of San Diego
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Cost of Living Comparison · 7 categories - 2026 data
San Diego is 2.5 times more expensive than Japan overall
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