Peru is about 337 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 Peru is approximately 1,285,216 sq km, making Peru 33,635% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. Peru uses the Mercator projection, which distorts the size of regions near the poles.
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