Brunei vs Vietnam

Vietnam is 57.5 times larger than Brunei. Brunei would fit into Vietnam about 58 times.

BruneiVietnamBrunei moved onto Vietnam · Equal-area projection
0.02×
Brunei is 0.02× the area of Vietnam. Put the other way, Vietnam is 57.5× the size of Brunei.
BruneiVietnam
Area5,765 km²331,690 km²
Population466,330101,598,527
Density81 / km²306 / km²
CapitalBandar Seri BegawanHanoi
RegionSouth-Eastern AsiaSouth-Eastern Asia
CoastlineHas a coastHas a coast
Neighbours13

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Brunei sits at about 5°N and is stretched to 1.01× its true area; Vietnam at 17° N is stretched to 1.09×. 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 Brunei bigger than Vietnam?
No. Brunei is 57.5 times smaller than Vietnam. Brunei covers 5,765 km² and Vietnam covers 331,690 km².
How many times does Brunei fit into Vietnam?
About 58 times: Vietnam has 57.5× the area of Brunei.
Why do Brunei and Vietnam look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Brunei is drawn about 1.01× its true area there and Vietnam about 1.09×. 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, Brunei or Vietnam?
Vietnam: 101,598,527 people against 466,330. Density: Brunei 81 per km², Vietnam 306 per km².