Total & land area: Comoros vs Mauritania size comparison

Mauritania is 507 times bigger by total area compared to Comoros: 397,955 sq mi vs 785 sq mi. Without inland water, the land area of Mauritania is 397,955 sq mi vs 719 sq mi for Comoros — a 554 times difference in territory size.

Comoros ranks 171/197 by total surface area vs 28/197 for Mauritania.
Comoros occupies 0.001% of the land mass of all countries, compared with 0.69% for Mauritania.
71.5% of Comoros' area is agricultural land vs 38.5% in Mauritania.
Comoros has 0.003% of the world's agricultural land area — Mauritania has 0.83%.
17% of Comoros is covered by forests, compared to 0.29% in Mauritania.
0.0008% of the world's forests are in Comoros, and 0.007% are in Mauritania.

True size map comparison: Comoros vs Mauritania

See how Comoros and Mauritania compare in true size on the map. Drag the outlines to different latitudes to see how the Mercator projection affects their apparent size.

Total size and land area comparison

	Comoros	Mauritania
Total area	785 sq mi	397,955 sq mi
Size difference ratio	1	507
Total area rank	171/197	28/197
Share of all countries' surface area	0.0004%	0.2%
Land area	719 sq mi	397,955 sq mi
Land area difference ratio	1	554
Land area rank	171/197	28/197
Share of all countries' land area	0.001%	0.69%
Population	866,628	5,169,395
Population density	1,252 ppl/mi²	13.7 ppl/mi²

Surface area by type

	Comoros	Mauritania
Forest area	122 sq mi	1,145 sq mi
Forest area as share of land	17%	0.29%
Forest area rank	170/196	149/196
World's forests share	0.0008%	0.007%
Agricultural land area	514 sq mi	153,321 sq mi
Agricultural land share	71.5%	38.5%
Agricultural land area rank	159/194	28/194
Share of global agricultural land	0.003%	0.83%
Arable land	251 sq mi	1,737 sq mi
Arable land share	34.9%	0.44%
Arable land area rank	154/191	125/191
Permanent cropland	204.6 sq mi	38.6 sq mi
Permanent cropland share	28.5%	0.01%
Permanent cropland area rank	122/192	153/192
Water area	66.8 sq mi	0 sq mi
Water as share of total area	8.51%	0%
Water area rank	131/197	182/197
Roads length	547 mi	7,614 mi
Land borders length	0 mi	3,108 mi
Coastline length	211.3 mi	469 mi
Share of marine protected waters	0.4%	3.7%

Comoros vs Mauritania size on the map

Data sources: World Bank | Agriculture & Rural Development (2026, retrieved 2026-04-06).

GeoRank.org/size/comoros/mauritania | CC BY

The map above outlines the borders of Comoros and Mauritania but is not accurate for size comparison because it's a 2d map with Mercator projection that distorts territories near the poles. The farther a country is from the equator, the more magnified it appears. More about country size projections.