City size comparison

compared to

Dayton is about 5 times bigger than Sydney.

Sydney is approximately 27 sq km, while Dayton is approximately 145 sq km, making Dayton 441% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. Dayton uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Dayton vs. Sydney

Flip Comparison · See true size
See Dayton on top of Sydney
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Cost of Living Comparison · 7 categories - 2026 data
Sydney is 67.5% more expensive than Dayton
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