New York is about 32 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 New York is approximately 122,283 sq km, making New York 3,110% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. New York uses the Mercator projection, which distorts the size of regions near the poles.
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