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Italy
Australia
Area Comparison
Rome is 9.6x smaller than Sydney
Population Comparison
Rome has 1.9x fewer people than Sydney
In terms of area, Sydney is 9.6x the size of Rome. Sydney spans 12,368 km² (4,775 mi²) while Rome covers 1,285 km² (496 mi²) — a difference of 11,083 km². You could fit Rome inside Sydney approximately 9 times.
To put Rome's size in perspective, its area of 1,285 km² is about 1.2x smaller than London. Meanwhile, Sydney at 12,368 km² is about 2.0x the size of Shanghai.
Italy's capital and a city of ancient history. Known as "The Eternal City", Rome covers 1,285 km² with a population of 2.9 million. The city was founded around 753 BC. Rome is known for Colosseum, Vatican City, Trevi Fountain, among other attractions. The city's main transit system is the Rome Metro.
Rome contains an entire independent country within its borders — Vatican City, the world's smallest state
Australia's largest city, known for the Opera House. Also known as "The Harbour City", Sydney has an area of 12,368 km² and is home to 5.3 million people. Its history stretches 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 2.3x larger than greater Rome at 5,352 km². The Sydney metro area is also more populous, with 5.3 million people compared to 4.3 million.
Rome has a population density of 2,233 people per km² — a moderately dense city. Sydney, with 429 people per km², is a low-density, sprawling urban area. Rome is dramatically more crowded, with 5.2x the population density.
This comparison spans continents — Rome in Europe versus Sydney in Oceania. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Rome has a Mediterranean climate while Sydney experiences humid subtropical conditions. When it's noon in Sydney, it's 3:00 AM in Rome — a 9-hour time difference.
Size Ratio
Rome fits inside Sydney ~9 times
Density Gap
Rome is 5.2x more densely populated
Time Difference
9 hours apart
History
Rome is ~2,541 years older
The straight-line distance from Rome to Sydney is 16,321 km (10,141 miles), with an estimated flight time of ~19h 42m. See full distance details, including timezone difference and city facts.
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