City size comparison

compared to

Boulder is about 2.4 times smaller than Amsterdam.

Amsterdam is approximately 166 sq km, while Boulder is approximately 70 sq km, making Boulder 42.0% the size of Amsterdam.
Tip: This to-scale comparison of Amsterdam vs. Boulder uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Boulder vs. Amsterdam

Flip Comparison · See true size
See Boulder on top of Amsterdam
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Cost of Living Comparison · 7 categories - 2026 data
Amsterdam is 29.1% more expensive than Boulder
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