Lisbon
100 km²
Xi'an
10,097 km²
Portugal
People's Republic of China
Area Comparison
Lisbon is 101.0x smaller than Xi'an
Population Comparison
Lisbon has 23.5x fewer people than Xi'an
Yes — Xi'an is 101.0x larger than Lisbon by area. Xi'an spans 10,097 km² (3,898 mi²) while Lisbon covers 100 km² (39 mi²) — a difference of 9,997 km². You could fit Lisbon inside Xi'an approximately 100 times.
To put Lisbon's size in perspective, its area of 100 km² is roughly the same size as Paris (city proper). Meanwhile, Xi'an at 10,097 km² is about 1.6x the size of Shanghai.
In more relatable units, Lisbon's 100 km² is about 14,000 American football fields, 50 times the area of Monaco, or 29 times the area of Central Park. Xi'an, by comparison, equals about 1,400,000 American football fields, 170 times the area of Manhattan, or 96 times the area of Paris.
Lisbon is the capital and most populous city of Portugal, with an estimated population of 575,739 as of 2024, within its administrative limits and 3,028,000 within the metropolis, as of 2025. Lisbon is mainland Europe's westernmost capital city, and the only one along the Atlantic coast, the others being on islands. The city lies in the western portion of the Iberian Peninsula, on the northern shore of the River Tagus.
Known as "City of Seven Hills", Lisbon covers 100 km² with a population of 0.6 million. The city was founded around 1200 BC. Lisbon is known for Belém Tower, Jerónimos Monastery, Tram 28, among other attractions. The city's main transit system is the Lisbon Metro.
Lisbon is mainland Europe's westernmost capital city and the only European capital along the Atlantic coast.
Xi'an is the capital of the Chinese province of Shaanxi. A sub-provincial city on the Guanzhong plain, the city is the third-most populous city in Western China after Chongqing and Chengdu, as well as the most populous city in Northwestern China. Its total population was 12.95 million in the 2020 census, including an urban population of 9.28 million.
Often called "Ancient Capital", Xi'an has an area of 10,097 km² and is home to 12.9 million people. Visitors come for Terracotta Army, Xi'an City Wall, Big Wild Goose Pagoda, and much more.
Xi'an's 2020 census recorded 12.95 million residents, making it the most populous city in Northwestern China.
Lisbon has a population density of 5,500 people per km² — a densely populated city. Xi'an, with 1,283 people per km², is a relatively spread-out city. Lisbon is dramatically more crowded, with 4.3x the population density.
Size Ratio
Lisbon fits inside Xi'an ~100 times
Density Gap
Lisbon is 4.3x more densely populated
Lisbon covers 100 km². Cities with a similar urban footprint include Barcelona (101 km²), Paris (105 km²), Copenhagen (91 km²), Zurich (88 km²), or Vancouver (115 km²).
Xi'an covers 10,097 km². Cities with a similar urban footprint include Melbourne (9,993 km²), Wuhan (8,569 km²), Sydney (12,368 km²), Guangzhou (7,434 km²), or Chengdu (14,378 km²).
The straight-line distance from Lisbon to Xi'an is 9,698 km (6,026 miles), with an estimated flight time of ~11h 55m.
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