Osaka
225 km²
Xi'an
10,097 km²
Japan
People's Republic of China
Area Comparison
Osaka is 44.9x smaller than Xi'an
Population Comparison
Osaka has 4.7x fewer people than Xi'an
Xi'an is significantly larger, covering 44.9 times the area of Osaka. Xi'an spans 10,097 km² (3,898 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 9,872 km². You could fit Osaka inside Xi'an approximately 44 times.
To put Osaka's size in perspective, its area of 225 km² is roughly the same size as Amsterdam. Meanwhile, Xi'an at 10,097 km² is about 1.6x the size of Shanghai.
In more relatable units, Osaka's 225 km² is about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park. For Xi'an, that's about 1,400,000 American football fields, 170 times the area of Manhattan, or 96 times the area of Paris.
Osaka is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the third-most populous city in Japan, following the special wards of Tokyo and Yokohama. With an estimated population of 2,816,247 as of October 1, 2025 and a population density of about 12,505 people per square kilometer, it is the largest component of the Keihanshin Metropolitan Area, the second-largest metropolitan area in Japan and the 10th-largest urban…
Known as "Nation's Kitchen", Osaka covers 225 km² with a population of 2.8 million. The city was established in 645. Osaka is known for Osaka Castle, Dotonbori district, Universal Studios Japan, among other attractions. The city's main transit system is the Osaka Metro.
Osaka is the third-most populous city in Japan, following the special wards of Tokyo and Yokohama.
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.
Nicknamed "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.
Osaka has a population density of 12,222 people per km² — an extremely dense urban environment. Xi'an, with 1,283 people per km², is a relatively spread-out city. Osaka is dramatically more crowded, with 9.5x the population density.
Size Ratio
Osaka fits inside Xi'an ~44 times
Density Gap
Osaka is 9.5x more densely populated
Osaka covers 225 km². Cities with a similar urban footprint include Amsterdam (219 km²), Boston (232 km²), Helsinki (214 km²), Kuala Lumpur (243 km²), or Buenos Aires (203 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 Osaka to Xi'an is 2,428 km (1,509 miles), with an estimated flight time of ~3h 21m.
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