City size comparison
compared to
San Francisco is about 7 times smaller than San Diego.
San Diego is approximately 844 sq km, while San Francisco (including the city proper only) is approximately 121 sq km, making San Francisco 14.34% the size of San Diego.
This to-scale comparison of
San Diego
vs.
San Francisco
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.