The map above shows Japan and Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Japan vs Wales Geography
Land area: Japan has a land area of 140,752 square miles (364,546 km²), while Wales has 8,023 square miles (20,779 km²). Japan's land area is 17.5 times larger than Wales'.
Total area: Japan: 145,937 square miles (377,975 km²) vs Wales: 8,023 square miles (20,779 km²), including inland and coastal water. Japan's total area is 18.2 times larger than Wales'.
Length: Japan is 1,557 miles (2,505 km) long from north to south; Wales is 149 miles (239 km). Japan's north-south length is 10.4 times longer than Wales'.
Width: Japan spans 1,568 miles (2,524 km) east to west; Wales spans 111 miles (179 km). Japan's east-west width is 14.1 times wider than Wales'.
Highest point: Japan's highest point is Mount Fuji at 12,388 feet (3,776 m); Wales's is Snowdon (Yr Wyddfa) at 3,560 feet (1,085 m). Mount Fuji is 8,828 feet higher than Snowdon (Yr Wyddfa).
Lowest point: Japan's lowest point is Hachirogata at -13 feet; Wales's is Irish Sea at 0 feet. Japan's lowest point is 13 feet lower.
Japan vs Wales Population and History
Population: Japan has a population of 122,680,000 (2026), while Wales has 3,105,000 (2022). Japan's population is 39.5 times larger than Wales'.
Population density: Japan: 871.6 people per square mile vs Wales: 387.0. Japan's population density is 2.3 times (125%) higher than Wales'.
Biggest city: Japan's biggest city is Tokyo with 13,515,271 people; Wales's is Cardiff with 372,089. Tokyo's population is 36.3 times larger than Cardiff's.
History: Japan: An independent state for over two millennia; the current constitution dates from 1947. Wales: A country within the United Kingdom; formally joined with England by the Laws in Wales Acts of 1536. In its current form, Japan is the older of the two by 876 years.
Japan vs Wales Economy
GDP: Japan's GDP is $4,435.2 billion (2025) vs Wales's $89.5 billion. Japan's economic output is 49.6 times larger than Wales'.
GDP per capita: Japan: $35,951 per person vs Wales: $28,606. Japan's GDP per capita is 1.3 times (26%) higher than Wales'.
Official Websites
Japan official website · Wales official website
More Size Comparisons
All Japan size comparisons · All Wales 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.