Karachi
3,527 km²
Osaka
225 km²
Pakistan
Japan
Area Comparison
Karachi is 15.7x larger than Osaka
Population Comparison
Karachi has 5.4x more people than Osaka
Yes — Karachi is 15.7x larger than Osaka by area. Karachi spans 3,527 km² (1,362 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 3,302 km². You could fit Osaka inside Karachi approximately 15 times.
To put Karachi's size in perspective, its area of 3,527 km² is about 1.1x smaller than Rhode Island. Meanwhile, Osaka at 225 km² is roughly the same size as Amsterdam.
In more relatable units, Karachi's 3,527 km² is about 494,000 American football fields, 60 times the area of Manhattan, or 33 times the area of Paris. For Osaka, that's about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park.
Karachi is the capital city of the province of Sindh, Pakistan. It is the largest city in Pakistan and 12th largest in the world, with a population of over 20 million. It is situated at the southern tip of the country along the Arabian Sea coast and formerly served as the country's capital from 1947 to 1959. Ranked as a beta-global city, it is Pakistan's premier industrial and financial centre, with an estimated GDP of over $200 billion (PPP) as of 2021.
Known as "City of Lights", Karachi covers 3,527 km² with a population of 14.9 million. The city was established in 1729. Karachi is known for Port of Karachi, Mazar-e-Quaid mausoleum, Clifton Beach, among other attractions.
Karachi is Pakistan's largest city and the 12th largest in the world, with a population of over 20 million.
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.
Karachi has a population density of 4,227 people per km² — a moderately dense city. Osaka, with 12,222 people per km², is an extremely dense urban environment. Osaka is noticeably denser, packing 2.9 times more people per square kilometer.
Size Ratio
Osaka fits inside Karachi ~15 times
Density Gap
Osaka is 2.9x more densely populated
History
Osaka is ~1,084 years older
Karachi covers 3,527 km². Cities with a similar urban footprint include Hanoi (3,359 km²), Cairo (3,085 km²), Dubai (4,114 km²), Lima (2,672 km²), or Moscow (2,511 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 Karachi to Osaka is 6,577 km (4,087 miles), with an estimated flight time of ~8h 14m.
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