City size comparison

compared to

Berlin is about 25 times bigger than Rockville.

Rockville (map shows its 87 named neighbourhoods; the area covers the whole city) is approximately 35 sq km, while Berlin is approximately 891 sq km, making Berlin 2,436% larger than Rockville.
Tip: This to-scale comparison of Rockville vs. Berlin uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Berlin vs. Rockville

Flip Comparison · See true size
See Berlin on top of Rockville
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Cost of Living Comparison · 7 categories - 2026 data
Rockville is 90.1% more expensive than Berlin
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