City size comparison

compared to

Warsaw is about 4.3 times bigger than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Warsaw is approximately 517 sq km, making Warsaw 327% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. Warsaw uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Warsaw vs. San Francisco

Flip Comparison · See true size
See Warsaw on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 2.2 times more expensive than Warsaw
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