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USA
Japan
Area Comparison
Boston is 9.5x smaller than Tokyo
Population Comparison
Boston has 20.5x fewer people than Tokyo
Yes — Tokyo is 9.5x larger than Boston by area. Tokyo spans 2,194 km² (847 mi²) while Boston covers 232 km² (90 mi²) — a difference of 1,962 km². You could fit Boston inside Tokyo approximately 9 times.
To put Boston's size in perspective, its area of 232 km² is roughly the same size as Amsterdam. Meanwhile, Tokyo at 2,194 km² is about 1.1x smaller than Moscow.
A historic city and academic center in the northeastern US. Known as "Beantown", Boston covers 232 km² with a population of 0.7 million. The city was established in 1630. Boston is known for Harvard & MIT, Freedom Trail, Fenway Park, among other attractions. The city's main transit system is the MBTA (The T).
Boston's subway system (the T) opened in 1897, making it the oldest subway in North America
Japan's capital and the world's most populous metropolitan area. Nicknamed "The Big Mikan", Tokyo has an area of 2,194 km² and is home to 14.0 million people. Its history stretches back to 1457. Visitors come for Shibuya Crossing, Tokyo Tower, Tsukiji Market, and much more. Getting around is easy with the Tokyo Metro & JR East.
Greater Tokyo is the world's largest metropolitan economy, surpassing the GDP of most countries
Looking beyond city limits, the Tokyo metropolitan area covers 13,572 km², which is 1.2x larger than greater Boston at 11,700 km². The Tokyo metro area is also more populous, with 37.4 million people compared to 4.9 million.
Boston has a population density of 2,931 people per km² — a moderately dense city. Tokyo, with 6,363 people per km², is a densely populated city. Tokyo is noticeably denser, packing 2.2 times more people per square kilometer.
This comparison spans continents — Boston in North America versus Tokyo in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Boston has a humid continental climate while Tokyo experiences humid subtropical conditions. When it's noon in Tokyo, it's midnight in Boston — a 14-hour time difference.
Size Ratio
Boston fits inside Tokyo ~9 times
Density Gap
Tokyo is 2.2x more densely populated
Time Difference
14 hours apart
History
Tokyo is ~173 years older
The straight-line distance from Boston to Tokyo is 10,794 km (6,707 miles), with an estimated flight time of ~13h 12m. See full distance details, including timezone difference and city facts.
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