Eritrea vs South Sudan

South Sudan is 5.48 times larger than Eritrea. Eritrea would fit into South Sudan about 5.5 times.

EritreaSouth SudanEritrea moved onto South Sudan · Equal-area projection
0.18×
Eritrea is 0.18× the area of South Sudan. Put the other way, South Sudan is 5.48× the size of Eritrea.
EritreaSouth Sudan
Area117,600 km²644,329 km²
Population3,607,00312,188,788
Density31 / km²19 / km²
CapitalAsmaraJuba
RegionEastern AfricaEastern Africa
CoastlineHas a coastLandlocked
Neighbours36

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; South Sudan at 7° N is stretched to 1.02×. Here the two are distorted about the same amount, so Mercator gets this pair roughly right. 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 South Sudan?
No. Eritrea is 5.48 times smaller than South Sudan. Eritrea covers 117,600 km² and South Sudan covers 644,329 km².
How many times does Eritrea fit into South Sudan?
About 5.5 times: South Sudan has 5.48× the area of Eritrea.
Why do Eritrea and South Sudan 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 South Sudan about 1.02×. For this pair the distortion is similar, so Mercator gets the comparison roughly right. Kartavera uses Equal Earth, where every square kilometre is drawn the same size.
Which has more people, Eritrea or South Sudan?
South Sudan: 12,188,788 people against 3,607,003. Density: Eritrea 31 per km², South Sudan 19 per km².