City size comparison

compared to

Kaiserslautern is around the same size as Boston.

Boston is approximately 124 sq km, while Kaiserslautern is approximately 140 sq km, making Kaiserslautern 13% larger than Boston.
Tip: This to-scale comparison of Boston vs. Kaiserslautern uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Kaiserslautern vs. Boston

Flip Comparison · See true size
See Kaiserslautern on top of Boston
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Cost of Living Comparison · 7 categories - 2026 data
Boston is 63.1% more expensive than Kaiserslautern
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