City size comparison

compared to

Copenhagen is about 1.4 times smaller than Boston.

Boston is approximately 124 sq km, while Copenhagen is approximately 90 sq km, making Copenhagen 72.59% the size of Boston.
Tip: This to-scale comparison of Boston vs. Copenhagen uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Copenhagen vs. Boston

Flip Comparison · See true size
See Copenhagen on top of Boston
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Cost of Living Comparison · 7 categories - 2026 data
Boston is 28.0% more expensive than Copenhagen
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