City size comparison

compared to

Shanghai is about 91 times bigger than Boulder.

Boulder is approximately 70 sq km, while Shanghai is approximately 6,341 sq km, making Shanghai 9,009% larger than Boulder.
Tip: This to-scale comparison of Boulder vs. Shanghai uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Shanghai vs. Boulder

Flip Comparison · See true size
See Shanghai on top of Boulder
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Cost of Living Comparison · 7 categories - 2026 data
Boulder is 2.2 times more expensive than Shanghai
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