City size comparison
compared to
Rio De Janeiro is about 10 times bigger than Boston.
Boston is approximately 124 sq km, while Rio De Janeiro is approximately 1,221 sq km, making Rio De Janeiro 885% larger than Boston.
This to-scale comparison of
Boston
vs.
Rio De Janeiro
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.