Two places · one area scale
How big is Japan compared to the United Kingdom?
How big is Japan compared to the United Kingdom? Compare cited land area and population, see real outlines at a shared area scale, and inspect calculated population density.
Japan has 1.51× the land area of United Kingdom. Japan has 1.78× the listed population of United Kingdom. Density is calculated from the cited figures.
The figures behind the map
Land area, population and calculated density
At a glance
Compare the figures
Each bar starts at zero. The longest bar is the highest value shown for that measure, not a rating.
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- Japan364,569 km²
- United Kingdom241,930 km²
- Japan123,366,734
- United Kingdom69,487,000
- Japan338 people/km²
- United Kingdom287 people/km²
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| Measure | Japan | United Kingdom |
|---|---|---|
| Land area | 364,569 sq kmWorld Bank — Land area · 2023 | 241,930 sq kmWorld Bank — Land area · 2023 |
| Population | 123,366,734 peopleWorld Bank — Population, total · 2025 | 69,487,000 peopleWorld Bank — Population, total · 2025 |
| Calculated density | 338 people/km²Calculated from the values above | 287 people/km²Calculated from the values above |
Density is calculated as population ÷ land area converted to km². Source years are shown separately; the calculation may combine different years.
Calculated from the cited values
Land area, population and density differences
The land-area gap is about 1 × New York's land area (122,639 km², calculated).
Japan has 1.78× the listed population of United Kingdom.
Japan has 1.18× the calculated population density of United Kingdom.
Land area is shown in km² in the charts so the bars use the same unit.
How to read Japan and United Kingdom