City size comparison

compared to

Sydney is about 5 times smaller than Dayton.

Dayton is approximately 145 sq km, while Sydney is approximately 27 sq km, making Sydney 18.47% the size of Dayton.
Tip: This to-scale comparison of Dayton vs. Sydney uses the Mercator projection, which distorts the size of regions near the poles.
Share

Compare further: Sydney vs. Dayton

Flip Comparison · See true size
See Sydney on top of Dayton
→
Cost of Living Comparison · 7 categories - 2026 data
Dayton is 21.2% cheaper than Sydney
→
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.
Download on the App Store GET IT ON Google Play