City size comparison
compared to
Boston is about 10 times smaller than Rio De Janeiro.
Rio De Janeiro is approximately 1,221 sq km, while Boston is approximately 124 sq km, making Boston 10.16% the size of Rio De Janeiro.
This to-scale comparison of
Rio De Janeiro
vs.
Boston
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.
