Delhi
1,484 km²
Philadelphia
370 km²
India
United States
Area Comparison
Delhi is 4.0x larger than Philadelphia
Population Comparison
Delhi has 10.5x more people than Philadelphia
Delhi is significantly larger, covering 4.0 times the area of Philadelphia. Delhi spans 1,484 km² (573 mi²) while Philadelphia covers 370 km² (143 mi²) — a difference of 1,114 km². You could fit Philadelphia inside Delhi approximately 4 times.
To put Delhi's size in perspective, its area of 1,484 km² is roughly the same size as London. Meanwhile, Philadelphia at 370 km² is about 1.6x smaller than Seoul.
Picture Delhi another way: its area is large enough to fit about 208,000 American football fields, 25 times the area of Manhattan, or 14 times the area of Paris. For Philadelphia, that's about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
Delhi, officially the National Capital Territory (NCT) of Delhi, is a megacity and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, but spread chiefly to the west, or beyond its right bank, Delhi shares borders with the state of Uttar Pradesh in the east and with the state of Haryana in the remaining directions. Delhi became a union territory on 1 November 1956 and the NCT in 1995. The NCT covers an area of 1,484 square kilometres (573 sq mi).
Known as "City of Djinns", Delhi covers 1,484 km² with a population of 16.8 million. The city was founded around 1500 BC. Delhi is known for Red Fort, India Gate, Qutub Minar, among other attractions. The city's main transit system is the Delhi Metro.
Delhi is a megacity and union territory of India, containing New Delhi, the capital of the country.
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.
Often called "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.
Delhi has a population density of 11,314 people per km² — an extremely dense urban environment. Philadelphia, with 4,324 people per km², is a moderately dense city. Delhi is noticeably denser, packing 2.6 times more people per square kilometer.
Size Ratio
Philadelphia fits inside Delhi ~4 times
Density Gap
Delhi is 2.6x more densely populated
History
Delhi is ~3,182 years older
Delhi covers 1,484 km². Cities with a similar urban footprint include Mexico City (1,485 km²), São Paulo (1,521 km²), Bangkok (1,569 km²), London (1,572 km²), or Bogotá (1,578 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 Delhi to Philadelphia is 11,860 km (7,370 miles), with an estimated flight time of ~14h 27m.
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