Eritrea vs Japan

Japan is 3.21 times larger than Eritrea. Eritrea would fit into Japan about 3.2 times.

EritreaJapanEritrea moved onto Japan · Equal-area projection
0.31×
Eritrea is 0.31× the area of Japan. Put the other way, Japan is 3.21× the size of Eritrea.
EritreaJapan
Area117,600 km²377,972 km²
Population3,607,003123,366,734
Density31 / km²326 / km²
CapitalAsmaraTokyo
RegionEastern AfricaEastern Asia
CoastlineHas a coastHas a coast
Neighbours30

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Eritrea sits at about 15°N and is stretched to 1.08× its true area; Japan at 37° N is stretched to 1.59×. That difference is why Japan looks so much bigger than it is next to Eritrea. The figure above uses the Equal Earth projection, where every square kilometre is drawn the same size.

Questions about this pair

Is Eritrea bigger than Japan?
No. Eritrea is 3.21 times smaller than Japan. Eritrea covers 117,600 km² and Japan covers 377,972 km².
How many times does Eritrea fit into Japan?
About 3.2 times: Japan has 3.21× the area of Eritrea.
Why do Eritrea and Japan look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Eritrea is drawn about 1.08× its true area there and Japan about 1.59×. That is why Japan looks so much bigger than it really is next to Eritrea. Kartavera uses Equal Earth, where every square kilometre is drawn the same size.
Which has more people, Eritrea or Japan?
Japan: 123,366,734 people against 3,607,003. Density: Eritrea 31 per km², Japan 326 per km².