Delhi
1,484 km²
Hanoi
3,359 km²
India
Vietnam
Area Comparison
Delhi is 2.3x smaller than Hanoi
Population Comparison
Delhi has 2.1x more people than Hanoi
Yes — Hanoi is 2.3x larger than Delhi by area. Hanoi spans 3,359 km² (1,297 mi²) while Delhi covers 1,484 km² (573 mi²) — a difference of 1,875 km². You could fit Delhi inside Hanoi approximately 2 times.
To put Delhi's size in perspective, its area of 1,484 km² is roughly the same size as London. Meanwhile, Hanoi at 3,359 km² is about 1.2x smaller than Rhode Island.
In more relatable units, Delhi's 1,484 km² is about 208,000 American football fields, 25 times the area of Manhattan, or 14 times the area of Paris. Hanoi works out to about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris.
Delhi, officially the National Capital Territory (NCT) of Delhi, is a megacity and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, but spread chiefly to the west, or beyond its right bank, Delhi shares borders with the state of Uttar Pradesh in the east and with the state of Haryana in the remaining directions. Delhi became a union territory on 1 November 1956 and the NCT in 1995. The NCT covers an area of 1,484 square kilometres (573 sq mi).
Known as "City of Djinns", Delhi covers 1,484 km² with a population of 16.8 million. The city was founded around 1500 BC. Delhi is known for Red Fort, India Gate, Qutub Minar, among other attractions. The city's main transit system is the Delhi Metro.
Delhi is a megacity and union territory of India, containing New Delhi, the capital of the country.
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. It was established in 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.
Looking beyond city limits, the Delhi metropolitan area covers 46,208 km², which is 13.8x larger than greater Hanoi at 3,359 km². The Delhi metro area is also more populous, with 32.9 million people compared to 8.1 million.
Delhi has a population density of 11,314 people per km² — an extremely dense urban environment. Hanoi, with 2,397 people per km², is a moderately dense city. Delhi is dramatically more crowded, with 4.7x the population density.
Both cities are in Asia, but they represent different national approaches to urban development. Delhi (India) and Hanoi (Vietnam) offer a fascinating regional contrast.
Both cities share a humid subtropical climate, though local geography creates distinct microclimates in each.
Size Ratio
Delhi fits inside Hanoi ~2 times
Density Gap
Delhi is 4.7x more densely populated
History
Delhi is ~2,510 years older
Delhi covers 1,484 km². Cities with a similar urban footprint include Mexico City (1,485 km²), São Paulo (1,521 km²), Bangkok (1,569 km²), London (1,572 km²), or Bogotá (1,578 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 Delhi to Hanoi is 3,013 km (1,872 miles), with an estimated flight time of ~4h 3m.
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