City size comparison

compared to

Winterthur is about 1.8 times smaller than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Winterthur is approximately 68 sq km, making Winterthur 56.26% the size of San Francisco.
Tip: This to-scale comparison of San Francisco vs. Winterthur uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Winterthur vs. San Francisco

Flip Comparison · See true size
See Winterthur on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 5.4% cheaper than Winterthur
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