Brisbane
15,826 km²
Hanoi
3,359 km²
Australia
Vietnam
Area Comparison
Brisbane is 4.7x larger than Hanoi
Population Comparison
Brisbane has 3.0x fewer people than Hanoi
In terms of area, Brisbane is 4.7x the size of Hanoi. Brisbane spans 15,826 km² (6,110 mi²) while Hanoi covers 3,359 km² (1,297 mi²) — a difference of 12,467 km². You could fit Hanoi inside Brisbane approximately 4 times.
To put Brisbane's size in perspective, its area of 15,826 km² is about 2.5x the size of Shanghai. Meanwhile, Hanoi at 3,359 km² is about 1.2x smaller than Rhode Island.
Brisbane's footprint is roughly about 2,200,000 American football fields, 150 times the area of Paris, or 130 times the area of San Francisco — pick whichever unit feels intuitive. Hanoi works out to about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris.
Brisbane is the capital and largest city of the Australian state of Queensland and the third-most populous city in Australia, with a population of approximately 2.8 million. Brisbane lies at the centre of South East Queensland, a bio-geographical and urban region with an estimated population of 4.1 million as of 2024. The central business district is situated within a peninsula of the Brisbane River approximately 15 kilometres (9.3 mi) from its mouth at Moreton Bay.
Known as "Brissy", Brisbane covers 15,826 km² with a population of 2.7 million. The city was established in 1824. Brisbane is known for Brisbane River, South Bank Parklands, Story Bridge, among other attractions.
Brisbane is Queensland's capital and Australia's third-most populous city with around 2.8 million residents.
Hanoi is the capital and second-most populous municipality of Vietnam. It encompasses an area of 3,358.6 km2 (1,296.8 mi2), and as of 2025 has a population of 8,807,523. Hanoi had the second-highest gross regional domestic product of all Vietnamese provinces and municipalities at US$48 billion in 2023, behind Ho Chi Minh City. It hosts 78 foreign embassies, the headquarters of the Vietnam People's Army (VPA), its Vietnam National University system, and other governmental organizations.
Nicknamed "City Between Rivers", Hanoi has an area of 3,359 km² and is home to 8.1 million people. The city dates back to 1010. Visitors come for Hoan Kiem Lake, Old Quarter, Temple of Literature, and much more. Getting around is easy with the Hanoi Metro.
Hanoi encompasses 3,358.6 square kilometers and had a population of nearly 8.8 million as of 2025.
Brisbane has a population density of 171 people per km² — a low-density, sprawling urban area. Hanoi, with 2,397 people per km², is a moderately dense city. Hanoi is dramatically more crowded, with 14.0x the population density.
Size Ratio
Hanoi fits inside Brisbane ~4 times
Density Gap
Hanoi is 14.0x more densely populated
History
Hanoi is ~814 years older
Brisbane covers 15,826 km². Cities with a similar urban footprint include Beijing (16,411 km²), Hangzhou (16,854 km²), Chengdu (14,378 km²), Sydney (12,368 km²), or Xi'an (10,097 km²).
Hanoi covers 3,359 km². Cities with a similar urban footprint include Karachi (3,527 km²), Cairo (3,085 km²), Dubai (4,114 km²), Lima (2,672 km²), or Moscow (2,511 km²).
The straight-line distance from Brisbane to Hanoi is 7,405 km (4,601 miles), with an estimated flight time of ~9h 13m.
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