Copenhagen
91 km²
Johannesburg
1,644 km²
Denmark
South Africa
Area Comparison
Copenhagen is 18.1x smaller than Johannesburg
Population Comparison
Copenhagen has 7.2x fewer people than Johannesburg
In terms of area, Johannesburg is 18.1x the size of Copenhagen. Johannesburg spans 1,644 km² (635 mi²) while Copenhagen covers 91 km² (35 mi²) — a difference of 1,553 km². You could fit Copenhagen inside Johannesburg approximately 18 times.
To put Copenhagen's size in perspective, its area of 91 km² is about 1.2x smaller than Paris (city proper). Meanwhile, Johannesburg at 1,644 km² is roughly the same size as London.
Picture Copenhagen another way: its area is large enough to fit about 13,000 American football fields, 190 times the area of Vatican City, or 45 times the area of Monaco. Johannesburg, by comparison, equals about 230,000 American football fields, 28 times the area of Manhattan, or 16 times the area of Paris.
Copenhagen is the capital and most populous city of both the country of Denmark and the wider Kingdom of Denmark, with a population of 667,000 people in the municipality and 1.4 million in the urban area. The city is situated mainly on the island of Zealand (Sjælland), with a smaller part on the island of Amager. Copenhagen is separated from Malmö, Sweden, by the Øresund strait. The Øresund Bridge connects the two cities by rail and road.
Known as "City of Spires", Copenhagen covers 91 km² with a population of 0.7 million. The city was established in 1167. Copenhagen is known for The Little Mermaid statue, Tivoli Gardens, Nyhavn waterfront, among other attractions.
Copenhagen sits mainly on the island of Zealand, with a smaller portion on the island of Amager.
Johannesburg, colloquially known as Jozi, Joburg or "The City of Gold", is the most populous city in South Africa. The City of Johannesburg itself has a population of 5,538,596, while the City of Johannesburg Metropolitan Municipality has a population of 6,599,190, making it one of the 100 largest urban areas in the world. Johannesburg is the provincial capital of Gauteng, the wealthiest province in South Africa, and seat of the country's highest court, the Constitutional Court.
Also known as "Jozi", Johannesburg has an area of 1,644 km² and is home to 4.8 million people. The city dates back to 1886. Visitors come for Apartheid Museum, Soweto township, Constitutional Court, and much more.
Johannesburg ranks among the world's 100 largest urban areas, with a metro population of about 6.6 million.
Copenhagen has a population density of 7,363 people per km² — a densely populated city. Johannesburg, with 2,920 people per km², is a moderately dense city. Copenhagen is noticeably denser, packing 2.5 times more people per square kilometer.
Size Ratio
Copenhagen fits inside Johannesburg ~18 times
Density Gap
Copenhagen is 2.5x more densely populated
History
Copenhagen is ~719 years older
Copenhagen covers 91 km². Cities with a similar urban footprint include Zurich (88 km²), Lisbon (100 km²), Barcelona (101 km²), Paris (105 km²), or Vancouver (115 km²).
Johannesburg covers 1,644 km². Cities with a similar urban footprint include Bogotá (1,578 km²), London (1,572 km²), Bangkok (1,569 km²), Houston (1,725 km²), or São Paulo (1,521 km²).
The straight-line distance from Copenhagen to Johannesburg is 9,223 km (5,731 miles), with an estimated flight time of ~11h 21m.
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