Dublin
115 km²
Hanoi
3,359 km²
City Map Compare/Dublin vs Hanoivs
vs
2 km
Ireland
Vietnam
Area Comparison
Dublin is 29.2x smaller than Hanoi
Population Comparison
Dublin has 13.6x fewer people than Hanoi
Hanoi is significantly larger, covering 29.2 times the area of Dublin. Hanoi spans 3,359 km² (1,297 mi²) while Dublin covers 115 km² (44 mi²) — a difference of 3,244 km². You could fit Dublin inside Hanoi approximately 29 times.
To put Dublin's size in perspective, its area of 115 km² is roughly the same size as San Francisco. Meanwhile, Hanoi at 3,359 km² is about 1.2x smaller than Rhode Island.
Dublin's footprint is roughly about 16,000 American football fields, 57 times the area of Monaco, or 34 times the area of Central Park — pick whichever unit feels intuitive. For Hanoi, that's about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris.
Dublin is the capital and largest city of Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the province of Leinster, and is bordered on the south by the Dublin Mountains, part of the Wicklow Mountains range. Dublin is the largest city by population on the island of Ireland; at the 2022 census, the city council area had a population of 592,713, while the city, including suburbs, had a population of 1,263,219, and County Dublin had a population of 1,501,500.
Known as "The Fair City", Dublin covers 115 km² with a population of 0.6 million. The city was established in 841. Dublin is known for Trinity College, Guinness Storehouse, Temple Bar, among other attractions.
Dublin sits on Dublin Bay at the mouth of the River Liffey, bordered to the south by the Dublin Mountains.
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.
Often called "City Between Rivers", Hanoi has an area of 3,359 km² and is home to 8.1 million people. Its history stretches 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.
Dublin has a population density of 5,130 people per km² — a densely populated city. Hanoi, with 2,397 people per km², is a moderately dense city. Dublin is noticeably denser, packing 2.1 times more people per square kilometer.
Size Ratio
Dublin fits inside Hanoi ~29 times
Density Gap
Dublin is 2.1x more densely populated
History
Dublin is ~169 years older
Dublin covers 115 km². Cities with a similar urban footprint include Vancouver (115 km²), San Francisco (121 km²), Paris (105 km²), Barcelona (101 km²), or Doha (132 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 Dublin to Hanoi is 9,508 km (5,908 miles), with an estimated flight time of ~11h 41m.
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