Philadelphia
370 km²
Tokyo
2,194 km²
United States
Japan
Area Comparison
Philadelphia is 5.9x smaller than Tokyo
Population Comparison
Philadelphia has 8.7x fewer people than Tokyo
Yes — Tokyo is 5.9x larger than Philadelphia by area. Tokyo spans 2,194 km² (847 mi²) while Philadelphia covers 370 km² (143 mi²) — a difference of 1,824 km². You could fit Philadelphia inside Tokyo approximately 5 times.
To put Philadelphia's size in perspective, its area of 370 km² is about 1.6x smaller than Seoul. Meanwhile, Tokyo at 2,194 km² is about 1.1x smaller than Moscow.
Philadelphia's footprint is roughly about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park — pick whichever unit feels intuitive. For Tokyo, that's about 307,000 American football fields, 37 times the area of Manhattan, or 21 times the area of Paris.
Philadelphia, colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania, and the sixth-most populous city in the United States, with a Census-estimated population of 1,574,281 in July 2025. The Philadelphia metropolitan area has 6.33 million residents and is the nation's ninth-largest metropolitan area. Philadelphia is known for its culture, cuisine, and history, maintaining contemporary influence in business and technology, sports, and music.
Known as "Philly", Philadelphia covers 370 km² with a population of 1.6 million. The city was established in 1682. Philadelphia is known for Liberty Bell, Independence Hall, Philly Cheesesteak, among other attractions.
Philadelphia is the sixth-most populous US city, with an estimated 1,574,281 residents as of July 2025.
Tokyo, officially the Tokyo Metropolis, is the capital and most populous city of Japan. With a population of over 14 million in the city proper in 2023, it is one of the most populous urban areas in the world. The Greater Tokyo Area, which includes Tokyo and parts of six neighboring prefectures, is the most populous metropolitan area in the world, with 41 million residents as of 2024.
Nicknamed "Eastern Capital", Tokyo has an area of 2,194 km² and is home to 14.0 million people. It was established in 1457. Visitors come for Shibuya Crossing, Tokyo Tower, Imperial Palace, and much more. Getting around is easy with the Tokyo Metro & JR East.
Greater Tokyo holds 41 million residents as of 2024, making it the most populous metropolitan area on Earth.
Philadelphia has a population density of 4,324 people per km² — a moderately dense city. Tokyo, with 6,363 people per km², is a densely populated city. Both cities have comparable density, though Tokyo is slightly more compact.
Size Ratio
Philadelphia fits inside Tokyo ~5 times
Density Gap
Tokyo is 1.5x more densely populated
History
Tokyo is ~225 years older
Philadelphia covers 370 km². Cities with a similar urban footprint include Seattle (369 km²), Dhaka (368 km²), Portland (376 km²), Atlanta (348 km²), or Denver (401 km²).
Tokyo covers 2,194 km². Cities with a similar urban footprint include Ho Chi Minh City (2,061 km²), Shenzhen (1,997 km²), Cape Town (2,455 km²), Moscow (2,511 km²), or Lima (2,672 km²).
The straight-line distance from Philadelphia to Tokyo is 10,881 km (6,761 miles), with an estimated flight time of ~13h 18m.
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