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USA
Spain
Area Comparison
Boston is 2.6x smaller than Madrid
Population Comparison
Boston has 4.9x fewer people than Madrid
Yes — Madrid is 2.6x larger than Boston by area. Madrid spans 604 km² (233 mi²) while Boston covers 232 km² (90 mi²) — a difference of 372 km². You could fit Boston inside Madrid approximately 2 times.
To put Boston's size in perspective, its area of 232 km² is roughly the same size as Amsterdam. Meanwhile, Madrid at 604 km² is roughly the same size as Seoul.
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
Spain's capital and largest city. Often called "The Capital of the Sun", Madrid has an area of 604 km² and is home to 3.3 million people. It was established in 852. Visitors come for Prado Museum, Royal Palace, Retiro Park, and much more. Getting around is easy with the Madrid Metro.
Madrid is the highest capital city in the European Union at 650 meters above sea level
Looking beyond city limits, the Boston metropolitan area covers 11,700 km², which is 1.5x larger than greater Madrid at 8,028 km². The Madrid metro area is also more populous, with 6.8 million people compared to 4.9 million.
Boston has a population density of 2,931 people per km² — a moderately dense city. Madrid, with 5,513 people per km², is a densely populated city. Madrid is noticeably denser, packing 1.9 times more people per square kilometer.
This comparison spans continents — Boston in North America versus Madrid in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Boston has a humid continental climate while Madrid experiences hot-summer Mediterranean conditions. When it's noon in Madrid, it's 6:00 AM in Boston — a 6-hour time difference.
Size Ratio
Boston fits inside Madrid ~2 times
Density Gap
Madrid is 1.9x more densely populated
Time Difference
6 hours apart
History
Madrid is ~778 years older
The straight-line distance from Boston to Madrid is 5,471 km (3,399 miles), with an estimated flight time of ~6h 56m. See full distance details, including timezone difference and city facts.
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