Hanoi
3,359 km²
Miami
143 km²
Vietnam
USA
Area Comparison
Hanoi is 23.5x larger than Miami
Population Comparison
Hanoi has 18.3x more people than Miami
Hanoi is significantly larger, covering 23.5 times the area of Miami. Hanoi spans 3,359 km² (1,297 mi²) while Miami covers 143 km² (55 mi²) — a difference of 3,216 km². You could fit Miami inside Hanoi approximately 23 times.
To put Hanoi's size in perspective, its area of 3,359 km² is about 1.2x smaller than Rhode Island. Meanwhile, Miami at 143 km² is about 1.2x the size of San Francisco.
Hanoi's footprint is roughly about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris — pick whichever unit feels intuitive. Miami works out to about 20,000 American football fields, 71 times the area of Monaco, or 42 times the area of Central Park.
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.
Known as "City Between Rivers", Hanoi covers 3,359 km² with a population of 8.1 million. The city was established in 1010. Hanoi is known for Hoan Kiem Lake, Old Quarter, Temple of Literature, among other attractions. The city's main transit system is the Hanoi Metro.
Hanoi encompasses 3,358.6 square kilometers and had a population of nearly 8.8 million as of 2025.
Miami is a coastal city in the U.S. state of Florida. It is the second-most populous city proper in Florida, with a population of 442,241 at the 2020 census. The Miami metropolitan area in South Florida has an estimated 6.39 million residents, ranking as the fifth-largest metropolitan area in the Southeast and eighth-largest metropolitan area in the United States. Miami has the third-largest skyline in the U.S. with over 300 high-rises, 70 of which exceed 491 ft (150 m).
Often called "Magic City", Miami has an area of 143 km² and is home to 0.4 million people. The city dates back to 1896. Visitors come for South Beach, Art Deco Historic District, Little Havana, and much more. Getting around is easy with the Metrorail Miami.
Miami boasts the third-largest skyline in the U.S. with over 300 high-rises, 70 of them topping 491 feet
Looking beyond city limits, the Miami metropolitan area covers 15,890 km², which is 4.7x larger than greater Hanoi at 3,359 km². The Hanoi metro area is also more populous, with 8.1 million people compared to 6.2 million.
Hanoi has a population density of 2,397 people per km² — a moderately dense city. Miami, with 3,077 people per km², is a moderately dense city. Both cities have comparable density, though Miami is slightly more compact.
This comparison spans continents — Hanoi in Asia versus Miami in North America. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Hanoi has a humid subtropical climate while Miami experiences tropical monsoon conditions. When it's noon in Hanoi, it's midnight in Miami — a 12-hour time difference.
Size Ratio
Miami fits inside Hanoi ~23 times
Time Difference
12 hours apart
History
Hanoi is ~886 years older
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).
Miami covers 143 km². Cities with a similar urban footprint include Minneapolis (149 km²), Brussels (161 km²), San Francisco (121 km²), Washington D.C. (177 km²), or Vancouver (115 km²).
The straight-line distance from Hanoi to Miami is 14,772 km (9,179 miles), with an estimated flight time of ~17h 53m.
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