City size comparison

compared to

London is about 45 times bigger than Rockville.

Rockville (map shows its 87 named neighbourhoods; the area covers the whole city) is approximately 35 sq km, while London (including the 32 boroughs of greater London) is approximately 1,572 sq km, making London 4,374% larger than Rockville.
Tip: This to-scale comparison of Rockville vs. London uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: London vs. Rockville

Flip Comparison · See true size
See London on top of Rockville
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Cost of Living Comparison · 7 categories - 2026 data
Rockville is 10.5% cheaper than London
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