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Spain
Australia
Area Comparison
Barcelona is 122.5x smaller than Sydney
Population Comparison
Barcelona has 3.2x fewer people than Sydney
Yes — Sydney is 122.5x larger than Barcelona by area. Sydney spans 12,368 km² (4,775 mi²) while Barcelona covers 101 km² (39 mi²) — a difference of 12,267 km². You could fit Barcelona inside Sydney approximately 122 times.
To put Barcelona's size in perspective, its area of 101 km² is roughly the same size as Paris (city proper). Meanwhile, Sydney at 12,368 km² is about 2.0x the size of Shanghai.
A Mediterranean city known for Gaudi's architecture. Known as "The City of Counts", Barcelona covers 101 km² with a population of 1.7 million. The city was founded around 230 BC. Barcelona is known for Sagrada Família, Park Güell, La Rambla, among other attractions. The city's main transit system is the Barcelona Metro (TMB).
Gaudí's Sagrada Família has been under construction since 1882 and is expected to be completed around 2026
Australia's largest city, known for the Opera House. Often called "The Harbour City", Sydney has an area of 12,368 km² and is home to 5.3 million people. The city dates back to 1788. Visitors come for Sydney Opera House, Harbour Bridge, Bondi Beach, and much more. Getting around is easy with the Sydney Trains.
Sydney's administrative area is so large it stretches from the coast to the Blue Mountains foothills
Looking beyond city limits, the Sydney metropolitan area covers 12,368 km², which is 15.4x larger than greater Barcelona at 803 km². The Barcelona metro area is also more populous, with 5.6 million people compared to 5.3 million.
Barcelona has a population density of 16,436 people per km² — an extremely dense urban environment. Sydney, with 429 people per km², is a low-density, sprawling urban area. Barcelona is dramatically more crowded, with 38.3x the population density.
This comparison spans continents — Barcelona in Europe versus Sydney in Oceania. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Barcelona has a Mediterranean climate while Sydney experiences humid subtropical conditions. When it's noon in Sydney, it's 3:00 AM in Barcelona — a 9-hour time difference.
Size Ratio
Barcelona fits inside Sydney ~122 times
Density Gap
Barcelona is 38.3x more densely populated
Time Difference
9 hours apart
History
Barcelona is ~2,018 years older
The straight-line distance from Barcelona to Sydney is 17,181 km (10,676 miles), with an estimated flight time of ~20h 43m. See full distance details, including timezone difference and city facts.
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