Papua New Guinea vs South Sudan

South Sudan is 39% larger than Papua New Guinea.

Papua New GuineaSouth SudanPapua New Guinea moved onto South Sudan · Equal-area projection
0.72×
Papua New Guinea is 0.72× the area of South Sudan. Put the other way, South Sudan is 1.39× the size of Papua New Guinea.
Papua New GuineaSouth Sudan
Area462,840 km²644,329 km²
Population10,762,81712,188,788
Density23 / km²19 / km²
CapitalPort MoresbyJuba
RegionMelanesiaEastern Africa
CoastlineHas a coastLandlocked
Neighbours16

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Papua New Guinea sits at about 6°S and is stretched to 1.01× 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 Papua New Guinea bigger than South Sudan?
No. Papua New Guinea is 28% smaller than South Sudan. Papua New Guinea covers 462,840 km² and South Sudan covers 644,329 km².
How many times does Papua New Guinea fit into South Sudan?
About 1.4 times: South Sudan has 1.39× the area of Papua New Guinea.
Why do Papua New Guinea and South Sudan look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Papua New Guinea is drawn about 1.01× 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, Papua New Guinea or South Sudan?
South Sudan: 12,188,788 people against 10,762,817. Density: Papua New Guinea 23 per km², South Sudan 19 per km².