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USA
Portugal
Area Comparison
Boston is 2.3x larger than Lisbon
Population Comparison
Boston has 1.2x more people than Lisbon
Boston is significantly larger, covering 2.3 times the area of Lisbon. Boston spans 232 km² (90 mi²) while Lisbon covers 100 km² (39 mi²) — a difference of 132 km². You could fit Lisbon inside Boston approximately 2 times.
To put Boston's size in perspective, its area of 232 km² is roughly the same size as Amsterdam. Meanwhile, Lisbon at 100 km² is roughly the same size as Paris (city proper).
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
Portugal's capital, one of Europe's oldest cities. Also known as "City of Seven Hills", Lisbon has an area of 100 km² and is home to 0.6 million people. The city dates back to 1200 BC. Visitors come for Belém Tower, Pastéis de nata, Tram 28, and much more. Getting around is easy with the Lisbon Metro.
Lisbon is older than Rome by about 400 years, making it one of the oldest cities in Western Europe
Looking beyond city limits, the Boston metropolitan area covers 11,700 km², which is 3.9x larger than greater Lisbon at 3,015 km². The Boston metro area is also more populous, with 4.9 million people compared to 2.9 million.
Boston has a population density of 2,931 people per km² — a moderately dense city. Lisbon, with 5,500 people per km², is a densely populated city. Lisbon is noticeably denser, packing 1.9 times more people per square kilometer.
This comparison spans continents — Boston in North America versus Lisbon in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Boston has a humid continental climate while Lisbon experiences Mediterranean conditions. When it's noon in Lisbon, it's 7:00 AM in Boston — a 5-hour time difference.
Size Ratio
Lisbon fits inside Boston ~2 times
Density Gap
Lisbon is 1.9x more densely populated
Time Difference
5 hours apart
History
Lisbon is ~2,830 years older
The straight-line distance from Boston to Lisbon is 5,131 km (3,188 miles), with an estimated flight time of ~6h 32m. See full distance details, including timezone difference and city facts.
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