City size comparison

compared to

Tokyo is about 5 times bigger than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Tokyo is approximately 619 sq km, making Tokyo 412% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. Tokyo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Tokyo vs. San Francisco

Flip Comparison · See true size
See Tokyo on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 2.4 times more expensive than Tokyo
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