City size comparison

compared to

Osaka is about 1.8 times bigger than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Osaka is approximately 223 sq km, making Osaka 84% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. Osaka uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Osaka vs. San Francisco

Flip Comparison · See true size
See Osaka on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 2.7 times more expensive than Osaka
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