Perth
6,417 km²
Riyadh
1,798 km²
Australia
Saudi Arabia
Area Comparison
Perth is 3.6x larger than Riyadh
Population Comparison
Perth has 3.3x fewer people than Riyadh
Perth is significantly larger, covering 3.6 times the area of Riyadh. Perth spans 6,417 km² (2,478 mi²) while Riyadh covers 1,798 km² (694 mi²) — a difference of 4,619 km². You could fit Riyadh inside Perth approximately 3 times.
To put Perth's size in perspective, its area of 6,417 km² is roughly the same size as Shanghai. Meanwhile, Riyadh at 1,798 km² is about 1.1x the size of London.
Perth's footprint is roughly about 899,000 American football fields, 110 times the area of Manhattan, or 61 times the area of Paris — 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.
Perth is the capital city of Western Australia. It is the fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth as of 2023. The world's most isolated major city by certain criteria, Perth is part of the South West Land Division of Western Australia, with most of Perth's metropolitan area on the Swan Coastal Plain between the Indian Ocean and the Darling Scarp.
Known as "City of Light", Perth covers 6,417 km² with a population of 2.1 million. The city was established in 1829. Perth is known for Swan River, Kings Park, Cottesloe Beach, among other attractions.
Perth is considered the world's most isolated major city by certain criteria, sitting on Australia's west coast.
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.
Perth has a population density of 333 people per km² — a low-density, sprawling urban area. Riyadh, with 3,899 people per km², is a moderately dense city. Riyadh is dramatically more crowded, with 11.7x the population density.
Size Ratio
Riyadh fits inside Perth ~3 times
Density Gap
Riyadh is 11.7x more densely populated
Perth covers 6,417 km². Cities with a similar urban footprint include Shanghai (6,341 km²), Guangzhou (7,434 km²), Istanbul (5,461 km²), Wuhan (8,569 km²), or Melbourne (9,993 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 Perth to Riyadh is 9,663 km (6,005 miles), with an estimated flight time of ~11h 52m.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.