Country size comparison

compared to

United States is about 2,581 times bigger than Sydney.

Sydney (the 30 councils of metropolitan Sydney, without the Blue Mountains, Hawkesbury, Wollondilly and the Central Coast) is approximately 3,810 sq km, while United States is approximately 9,833,517 sq km, making United States 258,015% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. United States uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: United States vs. Sydney

Flip Comparison · See true size
See United States on top of Sydney
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Cost of Living Comparison · 7 categories - 2026 data
Sydney is 19.7% more expensive than United States overall
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