City size comparison

compared to

Sydney is about 13 times smaller than Philadelphia.

Philadelphia is approximately 348 sq km, while Sydney is approximately 27 sq km, making Sydney 7.67% the size of Philadelphia.
Tip: This to-scale comparison of Philadelphia vs. Sydney uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Sydney vs. Philadelphia

Flip Comparison · See true size
See Sydney on top of Philadelphia
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Cost of Living Comparison · 7 categories - 2026 data
Philadelphia is 12.7% more expensive than Sydney
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