Paris
105 km²
Philadelphia
370 km²
France
United States
Area Comparison
Paris is 3.5x smaller than Philadelphia
Population Comparison
Paris has 1.4x more people than Philadelphia
Yes — Philadelphia is 3.5x larger than Paris by area. Philadelphia spans 370 km² (143 mi²) while Paris covers 105 km² (41 mi²) — a difference of 265 km². You could fit Paris inside Philadelphia approximately 3 times.
To put Paris's size in perspective, its area of 105 km² is about 1.2x smaller than San Francisco. Meanwhile, Philadelphia at 370 km² is about 1.6x smaller than Seoul.
Paris's footprint is roughly about 15,000 American football fields, 52 times the area of Monaco, or 31 times the area of Central Park — pick whichever unit feels intuitive. For Philadelphia, that's about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
Paris is the capital and largest city of France, with an estimated city population of 2.04 million in an area of 105.4 km2 (40.7 sq mi), and a metropolitan population of 13.2 million as of January 2026. Located on the river Seine in the centre of the Île-de-France region, it is the largest metropolitan area and fourth-most populous city in the European Union (EU).
Known as "City of Light", Paris covers 105 km² with a population of 2.2 million. The city was founded around 250 BC. Paris is known for Eiffel Tower, Louvre Museum, Notre-Dame Cathedral, among other attractions. The city's main transit system is the Paris Métro.
Paris packs 2.04 million people into just 105 km2, giving it one of the highest urban densities in Europe.
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.
Nicknamed "Philly", Philadelphia has an area of 370 km² and is home to 1.6 million people. It was established in 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.
Paris has a population density of 20,571 people per km² — one of the most densely packed urban areas on Earth. Philadelphia, with 4,324 people per km², is a moderately dense city. Paris is dramatically more crowded, with 4.8x the population density.
Size Ratio
Paris fits inside Philadelphia ~3 times
Density Gap
Paris is 4.8x more densely populated
History
Paris is ~1,932 years older
Paris covers 105 km². Cities with a similar urban footprint include Barcelona (101 km²), Lisbon (100 km²), Vancouver (115 km²), San Francisco (121 km²), or Copenhagen (91 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 Paris to Philadelphia is 5,966 km (3,707 miles), with an estimated flight time of ~7h 31m.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.