City size comparison

compared to

San Francisco is about 2 times smaller than Frankfurt.

Frankfurt is approximately 248 sq km, while San Francisco (including the city proper only) is approximately 121 sq km, making San Francisco 48.73% the size of Frankfurt.
Tip: This to-scale comparison of Frankfurt vs. San Francisco uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Francisco vs. Frankfurt

Flip Comparison · See true size
See San Francisco on top of Frankfurt
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Cost of Living Comparison · 7 categories - 2026 data
Frankfurt is 20.8% cheaper than San Francisco
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