The map above shows United Kingdom and Western Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
United Kingdom vs Western Australia Geography
Land area: United Kingdom has a land area of 93,410 square miles (241,930 km²), while Western Australia has 975,685 square miles (2,527,013 km²). Western Australia's land area is 10.4 times larger than United Kingdom's.
Total area: United Kingdom: 94,058 square miles (243,610 km²) vs Western Australia: 975,685 square miles (2,527,013 km²), including inland and coastal water. Western Australia's total area is 10.4 times larger than United Kingdom's.
Length: United Kingdom is 747 miles (1,202 km) long from north to south; Western Australia is 1,590 miles (2,558 km). Western Australia's north-south length is 2.1 times (113%) longer than United Kingdom's.
Width: United Kingdom spans 429 miles (690 km) east to west; Western Australia spans 1,286 miles (2,069 km). Western Australia's east-west width is 3.0 times (200%) wider than United Kingdom's.
Highest point: United Kingdom's highest point is Ben Nevis at 4,413 feet (1,345 m); Western Australia's is Mount Meharry at 4,098 feet (1,249 m). Ben Nevis is 315 feet higher than Mount Meharry.
Lowest point: United Kingdom's lowest point is The Fens (Holme Fen) at -10 feet; Western Australia's is Indian Ocean at 0 feet. United Kingdom's lowest point is 10 feet lower.
United Kingdom vs Western Australia Population and History
Population: United Kingdom has a population of 69,487,000 (2025), while Western Australia has 3,061,672 (2025). United Kingdom's population is 22.7 times larger than Western Australia's.
Population density: United Kingdom: 743.9 people per square mile vs Western Australia: 3.1. United Kingdom's population density is 240.0 times higher than Western Australia's.
Largest metro area: United Kingdom's largest metropolitan area is London (10,416,420 people) vs Western Australia's Greater Perth (2,452,765). London's population is 4.2 times (325%) larger than Greater Perth's.
History: United Kingdom: Formed as the United Kingdom of Great Britain and Ireland on January 1, 1801; took its current form in 1922. Western Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1829. In its current form, United Kingdom is the older of the two by 100 years.
United Kingdom vs Western Australia Economy
GDP: United Kingdom's GDP is $4,002.6 billion (2025) vs Western Australia's $304.6 billion. United Kingdom's economic output is 13.1 times larger than Western Australia's.
GDP per capita: United Kingdom: $57,602 per person vs Western Australia: $99,488. Western Australia's GDP per capita is 1.7 times (73%) higher than United Kingdom's.
Official Websites
United Kingdom official website · Western Australia official website
More Size Comparisons
All United Kingdom size comparisons · All Western Australia size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.