City size comparison
compared to
Sydney is about 4.6 times smaller than Boston.
Boston is approximately 124 sq km, while Sydney is approximately 27 sq km, making Sydney 21.53% the size of Boston.
This to-scale comparison of
Boston
vs.
Sydney
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.