City size comparison

compared to

Cambridge is about 7 times smaller than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Cambridge is approximately 17 sq km, making Cambridge 13.69% the size of San Francisco.
Tip: This to-scale comparison of San Francisco vs. Cambridge uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Cambridge vs. San Francisco

Flip Comparison · See true size
See Cambridge on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 18.8% more expensive than Cambridge
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