Brittany is 1.13× the size of Sardinia (Italy)

Brittany (region of France) covers about 27,300 km² (10,600 mi²) and Sardinia (Italy) (region of Italy) about 24,100 km² (9,310 mi²). Below, both outlines are drawn at one scale and centred on each other.

27,300km²Brittany
24,100km²Sardinia (Italy)

50 km

Brittany
Sardinia (Italy)

What fits

Sardinia (Italy) is 88% of the size of Brittany.
Brittany is larger by 3,230 km² (1,250 mi²), which is 13% of the area of Sardinia (Italy).
Measured in Belgiums: Brittany is about 0.89, Sardinia (Italy) about 0.79.

How they differ

Brittany also has the larger population: 3.4 million against 1.6 million, 2.10× as many people.
Per square kilometre that is 125 in Brittany against 68 in Sardinia (Italy): Brittany is 1.85× as densely populated.
Their centres are about 1,300 km apart.
A standard web map misstates the comparison: Brittany at 48°N is drawn about 2.2× too large and Sardinia (Italy) at 40°N about 1.7×, so the map shows Brittany as 1.49× the size of Sardinia (Italy) instead of 1.13×.
Together Brittany and Sardinia (Italy) cover 51,500 km², close to the size of Costa Rica (51,200 km², 0.6% smaller).
The gap between them, 3,230 km², is about the size of Turkish Republic of Northern Cyprus (3,320 km²).
At Sardinia (Italy)'s density, Brittany would have 1.8 million people (it has 3.4 million). At Brittany's density, Sardinia (Italy) would have 3.0 million (it has 1.6 million).
Brittany's centre is 8.1° of latitude, about 900 km, farther north than Sardinia (Italy)'s.
Brittany is the 12th largest of the 18 regions of France and covers 4.3% of its area; it is the 8th most densely populated of them.
Sardinia (Italy) is the 3rd largest of the 20 regions of Italy and covers 8.0% of its area; it is the 17th most densely populated of them.
Brittany lies about 8° of latitude (roughly 901 km) north of Sardinia (Italy).
Shared out evenly, each person in Brittany would have about 7,990 m² and each person in Sardinia (Italy) about 14,810 m².
Laid side by side, Brittany and Sardinia (Italy) would cover 51,500 km², about the same size as Costa Rica.
Together they have 5.1 million people, about as many people as Nicaragua.

Side by side

	Brittany	Sardinia (Italy)
Is a	RegionFrance	RegionItaly
Area, measured	27,300 km²10,600 mi²	24,100 km²9,310 mi²
Official area	27,200 km²Wikidata	23,900 km²Wikidata
Rank by area	12th of 18in France	3rd of 20in Italy
Population	3.4 millionWikidata, 2022	1.6 millionWikidata, 2020
Rank by population	9th of 18in France	11th of 20in Italy
Density	125 per km²	68 per km²
Capital	Rennes	Cagliari
Latitude range	47°N to 49°N	39°N to 41°N

Population: Wikidata 2022 and Wikidata 2020. Official figures: Wikidata (CC0).

Wikidata's official figure of 27,200 km² agrees with our measured area of 27,300 km², to within 2%.
Wikidata's official figure of 23,900 km² agrees with our measured area of 24,100 km², to within 2%.

Similar in size to Brittany

Similar in size to Sardinia (Italy)

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 1 - States, Provinces, public domain. The outline of Brittany is the departments Natural Earth draws there, joined along their shared borders. The outline of Sardinia (Italy) is the provinces Natural Earth draws there, joined along their shared borders.
Boundary: De facto, as drawn by Natural Earth. A region is drawn whole, every island included; a country is its main territory.
Area: Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded.
Drawing: Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and the two can be laid over each other.
Data built: 2026-11-12

Full method