City size comparison

compared to

London is about 1.8 times smaller than Ottawa.

Ottawa is approximately 2,779 sq km, while London (including the 32 boroughs of greater London) is approximately 1,572 sq km, making London 56.57% the size of Ottawa.
Tip: This to-scale comparison of Ottawa vs. London uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: London vs. Ottawa

Flip Comparison · See true size
See London on top of Ottawa
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Cost of Living Comparison · 7 categories - 2026 data
Ottawa is 34.7% cheaper than London
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