Oslo
454 km²
Riyadh
1,798 km²
Norway
Saudi Arabia
Area Comparison
Oslo is 4.0x smaller than Riyadh
Population Comparison
Oslo has 9.7x fewer people than Riyadh
In terms of area, Riyadh is 4.0x the size of Oslo. Riyadh spans 1,798 km² (694 mi²) while Oslo covers 454 km² (175 mi²) — a difference of 1,344 km². You could fit Oslo inside Riyadh approximately 3 times.
To put Oslo's size in perspective, its area of 454 km² is about 1.3x smaller than Seoul. Meanwhile, Riyadh at 1,798 km² is about 1.1x the size of London.
Oslo's footprint is roughly about 64,000 American football fields, 130 times the area of Central Park, or 8 times the area of Manhattan — pick whichever unit feels intuitive. For Riyadh, that's about 252,000 American football fields, 30 times the area of Manhattan, or 17 times the area of Paris.
Oslo is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of 724,290 in 2025, while the city's greater urban area had a population of 1,110,887 in 2025, and the metropolitan area had an estimated population of 1,546,706 in 2021.
Known as "Tigerstaden", Oslo covers 454 km² with a population of 0.7 million. The city was established in 1048. Oslo is known for Vigeland Park, Oslo Opera House, Akershus Fortress, among other attractions.
Oslo is both a county and a municipality, with the city itself home to about 724,000 residents in 2025.
Riyadh is the capital and largest city of Saudi Arabia. It is also the capital of the Riyadh Province and the centre of the Riyadh Governorate. Located on the eastern bank of Wadi Hanifa, the current form of the metropolis largely emerged in the 1950s as an expansion of the 18th-century walled town, following the dismantling of its defensive fortifications.
Riyadh has an area of 1,798 km² and is home to 7.0 million people. Its history stretches back to 1746. Visitors come for Kingdom Centre Tower, Masmak Fortress, Al Faisaliah Tower, and much more.
Riyadh is the capital and largest city of Saudi Arabia, sitting on the eastern bank of Wadi Hanifa.
Oslo has a population density of 1,586 people per km² — a relatively spread-out city. Riyadh, with 3,899 people per km², is a moderately dense city. Riyadh is noticeably denser, packing 2.5 times more people per square kilometer.
Size Ratio
Oslo fits inside Riyadh ~3 times
Density Gap
Riyadh is 2.5x more densely populated
History
Oslo is ~698 years older
Oslo covers 454 km². Cities with a similar urban footprint include Prague (496 km²), Vienna (415 km²), Montreal (498 km²), Denver (401 km²), or Warsaw (517 km²).
Riyadh covers 1,798 km². Cities with a similar urban footprint include Houston (1,725 km²), Johannesburg (1,644 km²), Shenzhen (1,997 km²), Bogotá (1,578 km²), or London (1,572 km²).
The straight-line distance from Oslo to Riyadh is 4,799 km (2,982 miles), with an estimated flight time of ~6h 9m.
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