Guinea-Bissau vs Mauritania

Mauritania is 28.5 times larger than Guinea-Bissau. Guinea-Bissau would fit into Mauritania about 29 times.

Guinea-BissauMauritaniaGuinea-Bissau moved onto Mauritania · Equal-area projection
0.04×
Guinea-Bissau is 0.04× the area of Mauritania. Put the other way, Mauritania is 28.5× the size of Guinea-Bissau.
Guinea-BissauMauritania
Area36,125 km²1,030,700 km²
Population2,249,5155,315,065
Density62 / km²5.2 / km²
CapitalBissauNouakchott
RegionWestern AfricaWestern Africa
CoastlineHas a coastHas a coast
Neighbours24

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Guinea-Bissau sits at about 12°N and is stretched to 1.05× its true area; Mauritania at 20° N is stretched to 1.14×. 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 Guinea-Bissau bigger than Mauritania?
No. Guinea-Bissau is 28.5 times smaller than Mauritania. Guinea-Bissau covers 36,125 km² and Mauritania covers 1,030,700 km².
How many times does Guinea-Bissau fit into Mauritania?
About 29 times: Mauritania has 28.5× the area of Guinea-Bissau.
Why do Guinea-Bissau and Mauritania look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Guinea-Bissau is drawn about 1.05× its true area there and Mauritania about 1.14×. 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, Guinea-Bissau or Mauritania?
Mauritania: 5,315,065 people against 2,249,515. Density: Guinea-Bissau 62 per km², Mauritania 5.2 per km².