City size comparison

compared to

London is about 3.9 times bigger than Cologne.

Cologne is approximately 405 sq km, while London (including the 32 boroughs of greater London) is approximately 1,572 sq km, making London 288% larger than Cologne.
Tip: This to-scale comparison of Cologne vs. London uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: London vs. Cologne

Flip Comparison · See true size
See London on top of Cologne
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Cost of Living Comparison · 7 categories - 2026 data
Cologne is 19.5% cheaper than London
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