City size comparison

compared to

Shanghai is about 466 times bigger than Key West.

Key West (area of Key West island) is approximately 14 sq km, while Shanghai is approximately 6,341 sq km, making Shanghai 46,525% larger than Key West.
Tip: This to-scale comparison of Key West vs. Shanghai uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Shanghai vs. Key West

Flip Comparison · See true size
See Shanghai on top of Key West
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Cost of Living Comparison · 7 categories - 2026 data
Key West is 2.4 times more expensive than Shanghai
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