Berlin
892 km²
Philadelphia
370 km²
Germany
United States
Area Comparison
Berlin is 2.4x larger than Philadelphia
Population Comparison
Berlin has 2.3x more people than Philadelphia
Berlin is significantly larger, covering 2.4 times the area of Philadelphia. Berlin spans 892 km² (344 mi²) while Philadelphia covers 370 km² (143 mi²) — a difference of 522 km². You could fit Philadelphia inside Berlin approximately 2 times.
To put Berlin's size in perspective, its area of 892 km² is about 1.1x the size of New York City. Meanwhile, Philadelphia at 370 km² is about 1.6x smaller than Seoul.
Berlin's footprint is roughly about 125,000 American football fields, 15 times the area of Manhattan, or 8 times the area of Paris — pick whichever unit feels intuitive. Philadelphia, by comparison, equals about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
Berlin is the capital of Germany, as well as its largest city by both area and population. With 3.7 million inhabitants, it has the highest population within its city limits of any city in the European Union. The city is also one of the states of Germany, being the third-smallest state in the country by area. Berlin is surrounded by the state of Brandenburg, bordering Brandenburg's capital Potsdam to the southwest.
Berlin covers 892 km² with a population of 3.6 million. The city was established in 1237. Berlin is known for Brandenburg Gate, Berlin Wall, Reichstag Building, among other attractions. The city's main transit system is the BVG (U-Bahn & S-Bahn).
Berlin holds the highest population within city limits of any city in the European Union, with 3.7 million inhabitants.
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.
Also known as "Philly", Philadelphia has an area of 370 km² and is home to 1.6 million people. The city dates back to 1682. Visitors come for Liberty Bell, Independence Hall, Philly Cheesesteak, and much more.
Philadelphia is the sixth-most populous US city, with an estimated 1,574,281 residents as of July 2025.
Berlin has a population density of 4,092 people per km² — a moderately dense city. Philadelphia, with 4,324 people per km², is a moderately dense city. Both cities have comparable density, though Philadelphia is slightly more compact.
Size Ratio
Philadelphia fits inside Berlin ~2 times
History
Berlin is ~445 years older
Berlin covers 892 km². Cities with a similar urban footprint include Santiago (838 km²), Kyoto (828 km²), San Diego (964 km²), Abu Dhabi (972 km²), or Dallas (997 km²).
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).
The straight-line distance from Berlin to Philadelphia is 6,514 km (4,048 miles), with an estimated flight time of ~8h 10m.
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