City size comparison

compared to

London is about 16 times bigger than Barcelona.

Barcelona is approximately 101 sq km, while London (including the 32 boroughs of greater London) is approximately 1,572 sq km, making London 1,452% larger than Barcelona.
Tip: This to-scale comparison of Barcelona vs. London uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: London vs. Barcelona

Flip Comparison · See true size
See London on top of Barcelona
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Cost of Living Comparison · 7 categories - 2026 data
Barcelona is 28.2% cheaper than London
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