Sydney vs Bucharest
Sydney is about 54× larger than Bucharest by administrative area. Sydney (Australia) covers 12,145 km² (4,689 mi²) with a population of 5.5 million, while Bucharest (Romania) covers 226 km² (87 mi²) with 1.7 million residents.
| Metric | Sydney | Bucharest |
|---|---|---|
| Area | 12,145 km² | 226 km² |
| Area (mi²) | 4,689 mi² | 87 mi² |
| Population | 5,450,496 | 1,716,961 |
| Population density | 449 /km² | 7,597 /km² |
| Area ratio | Sydney is ~54× larger by area than Bucharest. | |
Frequently asked questions
Is Sydney bigger than Bucharest?
Yes — Sydney is about 54× larger by area: 12,145 km² vs 226 km².
How big is Sydney?
Sydney, Australia, covers about 12,145 km² (4,689 mi²) of administrative area.
How big is Bucharest?
Bucharest, Romania, covers about 226 km² (87 mi²) of administrative area.
Which city has more people, Sydney or Bucharest?
Sydney has the larger population: 5.5 million vs 1.7 million. Population density is about 449 people/km² in Sydney and 7,597 people/km² in Bucharest.
City boundaries from OpenStreetMap. Last updated 2026-08-19.
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