City size comparison

compared to

Boston is about 5 times smaller than Tokyo.

Tokyo is approximately 619 sq km, while Boston is approximately 124 sq km, making Boston 20.03% the size of Tokyo.
Tip: This to-scale comparison of Tokyo vs. Boston uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Boston vs. Tokyo

Flip Comparison · See true size
See Boston on top of Tokyo
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Cost of Living Comparison · 7 categories - 2026 data
Tokyo is 36.3% cheaper than Boston
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