Papua New Guinea vs Peru

Peru is 2.78 times larger than Papua New Guinea. Papua New Guinea would fit into Peru about 2.8 times.

Papua New GuineaPeruPapua New Guinea moved onto Peru · Equal-area projection
0.36×
Papua New Guinea is 0.36× the area of Peru. Put the other way, Peru is 2.78× the size of Papua New Guinea.
Papua New GuineaPeru
Area462,840 km²1,285,216 km²
Population10,762,81734,576,665
Density23 / km²27 / km²
CapitalPort MoresbyLima
RegionMelanesiaSouth America
CoastlineHas a coastHas a coast
Neighbours15

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; Peru at 9° S is stretched to 1.03×. 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 Peru?
No. Papua New Guinea is 2.78 times smaller than Peru. Papua New Guinea covers 462,840 km² and Peru covers 1,285,216 km².
How many times does Papua New Guinea fit into Peru?
About 2.8 times: Peru has 2.78× the area of Papua New Guinea.
Why do Papua New Guinea and Peru 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 Peru about 1.03×. 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 Peru?
Peru: 34,576,665 people against 10,762,817. Density: Papua New Guinea 23 per km², Peru 27 per km².