City size comparison

compared to

Rotterdam is about 2.6 times bigger than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Rotterdam (map shows its 22 named neighbourhoods; the area covers the whole city) is approximately 319 sq km, making Rotterdam 164% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. Rotterdam uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Rotterdam vs. San Francisco

Flip Comparison · See true size
See Rotterdam on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 33.3% more expensive than Rotterdam
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