City size comparison

compared to

Philadelphia is about 13 times bigger than Sydney.

Sydney is approximately 27 sq km, while Philadelphia is approximately 348 sq km, making Philadelphia 1,203% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. Philadelphia uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Philadelphia vs. Sydney

Flip Comparison · See true size
See Philadelphia on top of Sydney
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Cost of Living Comparison · 7 categories - 2026 data
Sydney is 2.1% more expensive than Philadelphia
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