Yemen is 1.21× the size of Japan

Yemen covers about 453,000 km² (175,000 mi²) and Japan about 374,000 km² (144,000 mi²). Below, both outlines are drawn at one scale and centred on each other.

453,000km²Yemen
374,000km²Japan

500 km

Yemen
Japan

What fits

Japan is 82% of the size of Yemen.
Yemen is larger by 79,600 km² (30,700 mi²), which is 21% of the area of Japan.
Measured in Belgiums: Yemen is about 14.8, Japan about 12.2.

How they differ

Yemen is larger, but Japan has the larger population: 123.8 million against 28.3 million, 4.38× as many people.
Per square kilometre that is 331 in Japan against 62 in Yemen: Japan is 5.32× as densely populated.
Their centres are about 8,940 km apart.
On a standard web map Japan looks larger than Yemen: Yemen at 16°N is drawn about 1.1× too large and Japan at 37°N about 1.6×, so the map shows Japan as 1.21× the size of Yemen, when Yemen is 1.21× the size of Japan.
Together Yemen and Japan cover 827,000 km², close to the size of Namibia (823,000 km², 0.5% smaller).
The gap between them, 79,600 km², is about the size of Czechia (78,800 km²).
At Japan's density, Yemen would have 150.2 million people (it has 28.3 million). At Yemen's density, Japan would have 23.3 million (it has 123.8 million).
Japan's centre is 21.5° of latitude, about 2,390 km, farther north than Yemen's.

Who wins on what

Measure	Winner	By
Larger area	Yemen	1.21×
More people	Japan	4.38×
More crowded	Japan	5.32×
Farther north	Japan	21.5° of latitude
Stretched more on a web map	Japan	1.6× against 1.1×

Both against the same yardsticks

Yardstick	Yemen	Japan
Belgium 30,700 km²	14.8×	12.2×
United Kingdom 244,000 km²	1.86×	1.53×
Germany 358,000 km²	1.27×	1.04×
France 548,000 km²	0.83×	0.68×
India 3,151,000 km²	0.14×	0.12×
Brazil 8,473,000 km²	0.05×	0.04×
United States 9,447,000 km²	0.05×	0.04×
Russia 16,980,000 km²	0.03×	0.02×

Each figure is the place's area divided by the yardstick's.

Side by side

	Yemen	Japan
Area, main territory	453,000 km²175,000 mi²	374,000 km²144,000 mi²
Population	28.3 millionWikidata, 2017	123.8 millionWikidata, 2024
Density	62 per km²	331 per km²
Official area	456,000 km²Wikidata	378,000 km²Wikidata
Capital	Sanaa; Aden	Tokyo
Latitude range	12°N to 19°N	24°N to 46°N
Continent	Asia	Asia

Population: Wikidata 2017 and Wikidata 2024, covering each whole country. Official figures: Wikidata (CC0).

Wikidata's official figure of 456,000 km² agrees with our measured area of 453,000 km², to within 2%.
Wikidata's official figure of 378,000 km² agrees with our measured area of 374,000 km², to within 2%.

Similar in size to Yemen

Similar in size to Japan

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 0 - Countries, public domain
Boundary: De facto, as drawn by Natural Earth. Main territory: the largest landmass and every part within 1,000 km of it.
Area: Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded. Comparisons use main-territory area.
Drawing: Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and the two can be laid over each other.
Data built: 2026-11-11

Full method