Argentina vs Brazil

Brazil is 3.06 times larger than Argentina. Argentina would fit into Brazil about 3.1 times.

ArgentinaBrazilArgentina moved onto Brazil · Equal-area projection
0.33×
Argentina is 0.33× the area of Brazil. Put the other way, Brazil is 3.06× the size of Argentina.
ArgentinaBrazil
Area2,780,400 km²8,515,767 km²
Population45,851,378212,812,405
Density16 / km²25 / km²
CapitalBuenos AiresBrasilia
RegionSouth AmericaSouth America
CoastlineHas a coastHas a coast
Neighbours510

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Argentina sits at about 35°S and is stretched to 1.48× its true area; Brazil at 11° S is stretched to 1.04×. 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 Argentina bigger than Brazil?
No. Argentina is 3.06 times smaller than Brazil. Argentina covers 2,780,400 km² and Brazil covers 8,515,767 km².
How many times does Argentina fit into Brazil?
About 3.1 times: Brazil has 3.06× the area of Argentina.
Why do Argentina and Brazil look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Argentina is drawn about 1.48× its true area there and Brazil about 1.04×. 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, Argentina or Brazil?
Brazil: 212,812,405 people against 45,851,378. Density: Argentina 16 per km², Brazil 25 per km².