Japan
Japan is an island nation in East Asia, located in the Pacific Ocean east of the Korean Peninsula.
How big is it?
378,000 km² in area
Area · rounded geography model
A little perspective
About 1.55 times the area of United Kingdom.
United Kingdom: The United Kingdom is a country in north-western Europe comprising England, Scotland, Wales and Northern Ireland.
Measurements, assumptions & sources +
Japan
A rounded 377,975 km² national-area anchor, not a survey boundary.
Defined examples — our methodology
The marked area is calibrated. Unmeasured illustration details are representative.
United Kingdom
A rounded 243,610 km² geographical-area anchor. Inland-water and territorial definitions matter.
Defined examples — our methodology
The marked area is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 378,000 km²
For comparison, this page uses area. This is labelled rounded geography model: an explicit comparison model rather than a claim that every example has the same value.
A rounded 377,975 km² national-area anchor, not a survey boundary.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
Japan dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 378,000 km² | Not recorded | rounded geography model |
Around this scale
Go smaller. Go bigger.
These links use compatible area records, ordered around the selected value.
Nearest lower value · PlacesGreat Barrier Reef348,000 km²The Great Barrier Reef is a large coral reef system off the coast of Australia, renowned for its extensive marine biodiversity.
Around the same scale · PlacesUnited Kingdom243,600 km²The United Kingdom is a country in north-western Europe comprising England, Scotland, Wales and Northern Ireland.
Nearest higher value · SpaceEnceladus798,600 km²Enceladus is a natural satellite of Saturn, with an icy surface and plumes of water vapour erupting from its south pole.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
SportFootball pitch105 mA football pitch is the marked rectangular playing surface used for association football.
SpaceEarth12,740 kmEarth is the rocky planet on which we live and the third planet from the Sun.
PlacesCentral Park3.41 km²Central Park is a large public park in the centre of Manhattan, New York City.PlacesUnited Kingdom243,600 km²The United Kingdom is a country in north-western Europe comprising England, Scotland, Wales and Northern Ireland.SpaceEnceladus504.2 kmEnceladus is a natural satellite of Saturn, with an icy surface and plumes of water vapour erupting from its south pole.PlacesGreat Barrier Reef348,000 km²The Great Barrier Reef is a large coral reef system off the coast of Australia, renowned for its extensive marine biodiversity.
SpaceCeres939.4 kmCeres is a dwarf planet located in the asteroid belt between Mars and Jupiter.
PlacesGreenland2,166,000 km²Greenland is a large Arctic island northeast of Canada, mostly covered by an ice sheet and governed as an autonomous territory within Denmark.