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Italy
USA
Area Comparison
Rome is 7.3x larger than Washington D.C.
Population Comparison
Rome has 4.2x more people than Washington D.C.
Rome is significantly larger, covering 7.3 times the area of Washington D.C.. Rome spans 1,285 km² (496 mi²) while Washington D.C. covers 177 km² (68 mi²) — a difference of 1,108 km². You could fit Washington D.C. inside Rome approximately 7 times.
To put Rome's size in perspective, its area of 1,285 km² is about 1.2x smaller than London. Meanwhile, Washington D.C. at 177 km² is roughly the same size as Washington D.C..
Italy's capital and a city of ancient history. Known as "The Eternal City", Rome covers 1,285 km² with a population of 2.9 million. The city was founded around 753 BC. Rome is known for Colosseum, Vatican City, Trevi Fountain, among other attractions. The city's main transit system is the Rome Metro.
Rome contains an entire independent country within its borders — Vatican City, the world's smallest state
Capital of the United States. Often called "D.C.", Washington D.C. has an area of 177 km² and is home to 0.7 million people. It was established in 1790. Visitors come for The White House, Lincoln Memorial, Smithsonian museums, and much more. Getting around is easy with the Washington Metro.
D.C. has more free museums than any other city in the US — all 19 Smithsonian museums charge no admission
Looking beyond city limits, the Washington D.C. metropolitan area covers 14,412 km², which is 2.7x larger than greater Rome at 5,352 km². The Washington D.C. metro area is also more populous, with 6.3 million people compared to 4.3 million.
Rome has a population density of 2,233 people per km² — a moderately dense city. Washington D.C., with 3,898 people per km², is a moderately dense city. Washington D.C. is noticeably denser, packing 1.7 times more people per square kilometer.
This comparison spans continents — Rome in Europe versus Washington D.C. in North America. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Rome has a Mediterranean climate while Washington D.C. experiences humid subtropical conditions. When it's noon in Rome, it's 6:00 AM in Washington D.C. — a 6-hour time difference.
Size Ratio
Washington D.C. fits inside Rome ~7 times
Density Gap
Washington D.C. is 1.7x more densely populated
Time Difference
6 hours apart
History
Rome is ~2,543 years older
The straight-line distance from Rome to Washington D.C. is 7,217 km (4,484 miles), with an estimated flight time of ~8h 59m. See full distance details, including timezone difference and city facts.
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