London
1,572 km²
Osaka
225 km²
UK
Japan
Area Comparison
London is 7.0x larger than Osaka
Population Comparison
London has 3.3x more people than Osaka
London is significantly larger, covering 7.0 times the area of Osaka. London spans 1,572 km² (607 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 1,347 km². You could fit Osaka inside London approximately 6 times.
To put London's size in perspective, its area of 1,572 km² is about 1.4x smaller than Tokyo (city proper). Meanwhile, Osaka at 225 km² is roughly the same size as Amsterdam.
London's footprint is roughly about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris — pick whichever unit feels intuitive. For Osaka, that's about 32,000 American football fields, 110 times the area of Monaco, or 66 times the area of Central Park.
London is the capital and largest city of England and the United Kingdom, with a population of 9.1 million people in 2024. Its wider metropolitan area is the largest in Western Europe, with a population of 15.1 million. London stands on the River Thames in southeast England, at the head of a 50-mile (80 km) tidal estuary down to the North Sea, and has been a major settlement for nearly 2,000 years.
Known as "The Big Smoke", London covers 1,572 km² with a population of 9.0 million. The city was established in 43. London is known for Big Ben, Tower Bridge, Buckingham Palace, among other attractions. The city's main transit system is the London Underground.
London has been a major settlement for nearly 2,000 years, tracing its roots back to Roman times around 47 AD.
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. Its history stretches back to 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 1.6x larger than greater London at 8,382 km². The Osaka metro area is also more populous, with 19.3 million people compared to 14.3 million.
London has a population density of 5,712 people per km² — a densely populated city. Osaka, with 12,222 people per km², is an extremely dense urban environment. Osaka is noticeably denser, packing 2.1 times more people per square kilometer.
This comparison spans continents — London in Europe versus Osaka in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
London has a oceanic climate while Osaka experiences humid subtropical conditions. Summers are notably different: Osaka averages 28°C compared to 19°C in London. When it's noon in Osaka, it's 3:00 AM in London — a 9-hour time difference.
Size Ratio
Osaka fits inside London ~6 times
Density Gap
Osaka is 2.1x more densely populated
Time Difference
9 hours apart
History
London is ~602 years older
London covers 1,572 km². Cities with a similar urban footprint include Bangkok (1,569 km²), Bogotá (1,578 km²), São Paulo (1,521 km²), Johannesburg (1,644 km²), or Mexico City (1,485 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 London to Osaka is 9,499 km (5,903 miles), with an estimated flight time of ~11h 41m.
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