Montenegro vs Serbia

Serbia is 6.37 times larger than Montenegro. Montenegro would fit into Serbia about 6.4 times.

MontenegroSerbiaMontenegro moved onto Serbia · Equal-area projection
0.16×
Montenegro is 0.16× the area of Serbia. Put the other way, Serbia is 6.37× the size of Montenegro.
MontenegroSerbia
Area13,883 km²88,499 km²
Population623,1296,549,143
Density45 / km²74 / km²
CapitalPodgoricaBelgrade
RegionSouthern EuropeSouthern Europe
CoastlineHas a coastLandlocked
Neighbours58

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Montenegro sits at about 43°N and is stretched to 1.86× its true area; Serbia at 44° N is stretched to 1.95×. 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 Montenegro bigger than Serbia?
No. Montenegro is 6.37 times smaller than Serbia. Montenegro covers 13,883 km² and Serbia covers 88,499 km².
How many times does Montenegro fit into Serbia?
About 6.4 times: Serbia has 6.37× the area of Montenegro.
Why do Montenegro and Serbia look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Montenegro is drawn about 1.86× its true area there and Serbia about 1.95×. 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, Montenegro or Serbia?
Serbia: 6,549,143 people against 623,129. Density: Montenegro 45 per km², Serbia 74 per km².