City size comparison

 London, United Kingdom
compared to
 Boston (MA), United States

London is about 13 times bigger than Boston.

Boston is approximately 124 sq km, while London (including the 32 boroughs of greater London) is approximately 1,572 sq km, making London 1,168% larger than Boston. We have positioned the outline of Boston near the middle of London.
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This to-scale comparison of Boston vs. London uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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