Bangladesh vs Vietnam

Vietnam is 2.25 times larger than Bangladesh. Bangladesh would fit into Vietnam about 2.2 times.

BangladeshVietnamBangladesh moved onto Vietnam · Equal-area projection
0.44×
Bangladesh is 0.44× the area of Vietnam. Put the other way, Vietnam is 2.25× the size of Bangladesh.
BangladeshVietnam
Area147,570 km²331,690 km²
Population175,686,899101,598,527
Density1,191 / km²306 / km²
CapitalDhakaHanoi
RegionSouthern AsiaSouth-Eastern Asia
CoastlineHas a coastHas a coast
Neighbours23

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Bangladesh sits at about 24°N and is stretched to 1.2× 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 Bangladesh bigger than Vietnam?
No. Bangladesh is 2.25 times smaller than Vietnam. Bangladesh covers 147,570 km² and Vietnam covers 331,690 km².
How many times does Bangladesh fit into Vietnam?
About 2.2 times: Vietnam has 2.25× the area of Bangladesh.
Why do Bangladesh and Vietnam look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Bangladesh is drawn about 1.2× 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, Bangladesh or Vietnam?
Bangladesh: 175,686,899 people against 101,598,527. Density: Bangladesh 1,191 per km², Vietnam 306 per km².