Japan vs United Kingdom

Japan is 1.6 times larger than United Kingdom — 377,915 against 243,610 km². Japan is 1.8 times more populous than United Kingdom — 123,366,734 against 69,487,000 people.

Side by side

Population density

Japan is 1.1 times more densely populated than United Kingdom — 326 against 285 people per km². Density is where area and population interact, and it often reverses the impression the headline figures give — a large country with a small population can feel emptier than a small crowded one by an enormous margin.

Practical differences

• Different currencies: the Japanese yen and the British pound.
• Different continents — Asia and Europe.

Japan

A 2023 government survey using digital mapping counted 14,125 islands, more than double the long-quoted figure of 6,852. About three-quarters of the land is mountain, so nearly everyone lives on a narrow band of coastal plain. Japan sits where four tectonic plates meet and records a fifth of the world's magnitude-6-and-above earthquakes.

United Kingdom

Made up of Great Britain, the north-east of Ireland and around 6,000 smaller islands. No point in the UK is more than about 113 km from the sea. Ben Nevis, the highest point, is 1,345 m, which is modest — but the country has around 31,000 km of coastline once every inlet is counted.

Neutral facts only. Nothing here addresses politics, government, economics or which country is preferable in any respect — population is the one figure that dates, and it carries its year.