Osaka
225 km²
Perth
6,417 km²
Japan
Australia
Area Comparison
Osaka is 28.5x smaller than Perth
Population Comparison
Osaka has 1.3x more people than Perth
Perth is significantly larger, covering 28.5 times the area of Osaka. Perth spans 6,417 km² (2,478 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 6,192 km². You could fit Osaka inside Perth approximately 28 times.
To put Osaka's size in perspective, its area of 225 km² is roughly the same size as Amsterdam. Meanwhile, Perth at 6,417 km² is roughly the same size as Shanghai.
Osaka's footprint is roughly about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park — pick whichever unit feels intuitive. Perth works out to about 899,000 American football fields, 110 times the area of Manhattan, or 61 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.
Perth is the capital city of Western Australia. It is the fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth as of 2023. The world's most isolated major city by certain criteria, Perth is part of the South West Land Division of Western Australia, with most of Perth's metropolitan area on the Swan Coastal Plain between the Indian Ocean and the Darling Scarp.
Nicknamed "City of Light", Perth has an area of 6,417 km² and is home to 2.1 million people. The city dates back to 1829. Visitors come for Swan River, Kings Park, Cottesloe Beach, and much more.
Perth is considered the world's most isolated major city by certain criteria, sitting on Australia's west coast.
Osaka has a population density of 12,222 people per km² — an extremely dense urban environment. Perth, with 333 people per km², is a low-density, sprawling urban area. Osaka is dramatically more crowded, with 36.7x the population density.
Size Ratio
Osaka fits inside Perth ~28 times
Density Gap
Osaka is 36.7x more densely populated
History
Osaka is ~1,184 years older
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).
Perth covers 6,417 km². Cities with a similar urban footprint include Shanghai (6,341 km²), Guangzhou (7,434 km²), Istanbul (5,461 km²), Wuhan (8,569 km²), or Melbourne (9,993 km²).
The straight-line distance from Osaka to Perth is 7,690 km (4,778 miles), with an estimated flight time of ~9h 33m.
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