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Australia
Austria
Area Comparison
Sydney is 29.8x larger than Vienna
Population Comparison
Sydney has 2.7x more people than Vienna
Yes — Sydney is 29.8x larger than Vienna by area. Sydney spans 12,368 km² (4,775 mi²) while Vienna covers 415 km² (160 mi²) — a difference of 11,953 km². You could fit Vienna inside Sydney approximately 29 times.
To put Sydney's size in perspective, its area of 12,368 km² is about 2.0x the size of Shanghai. Meanwhile, Vienna at 415 km² is about 1.5x smaller than Seoul.
Australia's largest city, known for the Opera House. Known as "The Harbour City", Sydney covers 12,368 km² with a population of 5.3 million. The city was established in 1788. Sydney is known for Sydney Opera House, Harbour Bridge, Bondi Beach, among other attractions. The city's main transit system is the Sydney Trains.
Sydney's administrative area is so large it stretches from the coast to the Blue Mountains foothills
Austria's capital and a center of classical music. Often called "City of Music", Vienna has an area of 415 km² and is home to 2.0 million people. It was founded around 500 BC. Visitors come for Schönbrunn Palace, Vienna State Opera, Sachertorte, and much more. Getting around is easy with the Wiener Linien (U-Bahn).
Vienna has been ranked the world's most liveable city multiple times by the Economist Intelligence Unit
Looking beyond city limits, the Sydney metropolitan area covers 12,368 km², which is 3.2x larger than greater Vienna at 3,840 km². The Sydney metro area is also more populous, with 5.3 million people compared to 2.8 million.
Sydney has a population density of 429 people per km² — a low-density, sprawling urban area. Vienna, with 4,771 people per km², is a moderately dense city. Vienna is dramatically more crowded, with 11.1x the population density.
This comparison spans continents — Sydney in Oceania versus Vienna in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Sydney has a humid subtropical climate while Vienna experiences oceanic conditions. When it's noon in Sydney, it's 3:00 AM in Vienna — a 9-hour time difference.
Size Ratio
Vienna fits inside Sydney ~29 times
Density Gap
Vienna is 11.1x more densely populated
Time Difference
9 hours apart
History
Vienna is ~2,288 years older
The straight-line distance from Sydney to Vienna is 15,976 km (9,927 miles), with an estimated flight time of ~19h 18m. See full distance details, including timezone difference and city facts.
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