City size comparison

compared to

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.
Tip: This to-scale comparison of Boston vs. London uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: London vs. Boston
Flip Comparison · See true size
See London on top of Boston
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Cost of Living Comparison · 7 categories - 2026 data
Boston is 3.9% more expensive than London
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