Sydney vs Rome
Sydney is about 9.4× larger than Rome by administrative area. Sydney (Australia) covers 12,145 km² (4,689 mi²) with a population of 5.5 million, while Rome (Italy) covers 1,287 km² (497 mi²) with 2.7 million residents.
| Metric | Sydney | Rome |
|---|---|---|
| Area | 12,145 km² | 1,287 km² |
| Area (mi²) | 4,689 mi² | 497 mi² |
| Population | 5,450,496 | 2,748,109 |
| Population density | 449 /km² | 2,135 /km² |
| Area ratio | Sydney is ~9.4× larger by area than Rome. | |
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Both outlines are drawn at the same scale.
Frequently asked questions
Is Sydney bigger than Rome?
Yes — Sydney is about 9.4× larger by area: 12,145 km² vs 1,287 km².
How big is Sydney?
Sydney, Australia, covers about 12,145 km² (4,689 mi²) of administrative area.
How big is Rome?
Rome, Italy, covers about 1,287 km² (497 mi²) of administrative area.
Which city has more people, Sydney or Rome?
Sydney has the larger population: 5.5 million vs 2.7 million. Population density is about 449 people/km² in Sydney and 2,135 people/km² in Rome.
City boundaries from OpenStreetMap. Last updated 2026-10-08.
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