City size comparison
compared to
Vienna is about 2 times smaller than San Diego.
San Diego is approximately 844 sq km, while Vienna is approximately 415 sq km, making Vienna 49.14% the size of San Diego.
This to-scale comparison of
San Diego
vs.
Vienna
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.