Denver
401 km²
Rio de Janeiro
1,221 km²
United States
Brazil
Area Comparison
Denver is 3.0x smaller than Rio de Janeiro
Population Comparison
Denver has 9.4x fewer people than Rio de Janeiro
Rio de Janeiro is significantly larger, covering 3.0 times the area of Denver. Rio de Janeiro spans 1,221 km² (471 mi²) while Denver covers 401 km² (155 mi²) — a difference of 820 km². You could fit Denver inside Rio de Janeiro approximately 3 times.
To put Denver's size in perspective, its area of 401 km² is about 1.5x smaller than Seoul. Meanwhile, Rio de Janeiro at 1,221 km² is about 1.3x smaller than London.
In more relatable units, Denver's 401 km² is about 56,000 American football fields, 200 times the area of Monaco, or 120 times the area of Central Park. For Rio de Janeiro, that's about 171,000 American football fields, 21 times the area of Manhattan, or 12 times the area of Paris.
Denver is the capital and most populous city of the U.S. state of Colorado. Officially a consolidated city and county, it is located in the South Platte River valley on the western edge of the High Plains, and is just east of the Front Range of the Rocky Mountains (Rockies). Denver is the 19th-most populous city in the United States and the fifth-most populous state capital, with a population of 715,522 at the 2020 census.
Known as "Mile High City", Denver covers 401 km² with a population of 0.7 million. The city was established in 1858. Denver is known for Red Rocks Amphitheatre, Denver Art Museum, Union Station, among other attractions.
Denver sits in the South Platte River valley just east of the Rocky Mountains' Front Range.
Rio de Janeiro, also known simply as Rio, is the capital of the state of Rio de Janeiro. It is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous city in the Americas.
Nicknamed "Cidade Maravilhosa", Rio de Janeiro has an area of 1,221 km² and is home to 6.8 million people. The city dates back to 1565. Visitors come for Christ the Redeemer, Sugarloaf Mountain, Copacabana beach, and much more. Getting around is easy with the MetrôRio.
Rio de Janeiro is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous in the Americas.
Denver has a population density of 1,796 people per km² — a relatively spread-out city. Rio de Janeiro, with 5,528 people per km², is a densely populated city. Rio de Janeiro is dramatically more crowded, with 3.1x the population density.
Denver has a cold semi-arid climate climate while Rio de Janeiro experiences tropical savanna conditions.
Size Ratio
Denver fits inside Rio de Janeiro ~3 times
Density Gap
Rio de Janeiro is 3.1x more densely populated
History
Rio de Janeiro is ~293 years older
Denver covers 401 km². Cities with a similar urban footprint include Vienna (415 km²), Portland (376 km²), Philadelphia (370 km²), Seattle (369 km²), or Dhaka (368 km²).
Rio de Janeiro covers 1,221 km². Cities with a similar urban footprint include San Antonio (1,209 km²), Lagos (1,172 km²), Rome (1,285 km²), Los Angeles (1,302 km²), or Hong Kong (1,114 km²).
The straight-line distance from Denver to Rio de Janeiro is 9,461 km (5,879 miles), with an estimated flight time of ~11h 38m.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.