Jakarta
662 km²
Osaka
225 km²
Indonesia
Japan
Area Comparison
Jakarta is 2.9x larger than Osaka
Population Comparison
Jakarta has 3.8x more people than Osaka
Yes — Jakarta is 2.9x larger than Osaka by area. Jakarta spans 662 km² (256 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 437 km². You could fit Osaka inside Jakarta approximately 2 times.
To put Jakarta's size in perspective, its area of 662 km² is roughly the same size as Seoul. Meanwhile, Osaka at 225 km² is roughly the same size as Amsterdam.
In more relatable units, Jakarta's 662 km² is about 93,000 American football fields, 190 times the area of Central Park, or 11 times the area of Manhattan. Osaka works out to about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park.
Jakarta, officially the Special Capital Region of Jakarta, is the de facto capital and largest city of Indonesia, with administrative status equivalent to a province. It lies on the northwestern coast of Java, borders the provinces of West Java and Banten, and faces the Java Sea to the north. Jakarta itself covers about 662 square kilometres, but the wider Jakarta metropolitan area—locally known as Jabodetabek—is among the largest urban agglomerations in the world.
Known as "Big Durian", Jakarta covers 662 km² with a population of 10.6 million. The city was established in 1527. Jakarta is known for National Monument Monas, Istiqlal Mosque, Kota Tua old town, among other attractions. The city's main transit system is the Jakarta MRT.
Jakarta has administrative status equivalent to a province as the Special Capital Region of Indonesia.
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…
Often called "Nation's Kitchen", Osaka has an area of 225 km² and is home to 2.8 million people. It was established in 645. Visitors come for Osaka Castle, Dotonbori district, Universal Studios Japan, and much more. Getting around is easy with the Osaka Metro.
Osaka is the third-most populous city in Japan, following the special wards of Tokyo and Yokohama.
Looking beyond city limits, the Osaka metropolitan area covers 13,228 km², which is 2.1x larger than greater Jakarta at 6,392 km². The Jakarta metro area is also more populous, with 34.5 million people compared to 19.3 million.
Jakarta has a population density of 15,952 people per km² — an extremely dense urban environment. Osaka, with 12,222 people per km², is an extremely dense urban environment. Both cities have comparable density, though Jakarta is slightly more compact.
Both cities are in Asia, but they represent different national approaches to urban development. Jakarta (Indonesia) and Osaka (Japan) offer a fascinating regional contrast.
Jakarta has a tropical monsoon climate while Osaka experiences humid subtropical conditions. Winters differ dramatically: Jakarta stays around 27°C while Osaka drops to 5°C. When it's noon in Osaka, it's 10:00 AM in Jakarta — a 2-hour time difference.
Size Ratio
Osaka fits inside Jakarta ~2 times
Density Gap
Jakarta is 1.3x more densely populated
History
Osaka is ~882 years older
Jakarta covers 662 km². Cities with a similar urban footprint include Hyderabad (650 km²), Toronto (630 km²), Nairobi (696 km²), Chicago (606 km²), or Seoul (605 km²).
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).
The straight-line distance from Jakarta to Osaka is 5,452 km (3,387 miles), with an estimated flight time of ~6h 55m.
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