Country size comparison

compared to

United Kingdom is about 289 times bigger than San Diego.

San Diego is approximately 844 sq km, while United Kingdom is approximately 243,610 sq km, making United Kingdom 28,763% larger than San Diego.
Tip: This to-scale comparison of San Diego vs. United Kingdom uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: United Kingdom vs. San Diego

Flip Comparison · See true size
See United Kingdom on top of San Diego
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Cost of Living Comparison · 7 categories - 2026 data
San Diego is 31.7% more expensive than United Kingdom overall
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