Brittany is 1.77× the size of Iwate
Brittany (region of France) covers about 27,300 km² (10,600 mi²) and Iwate (prefecture of Japan) about 15,500 km² (5,970 mi²). Below, both outlines are drawn at one scale and centred on each other.
- 27,300km²Brittany
- 15,500km²Iwate
50 km
- Brittany
- Iwate
What fits
- Iwate is 57% of the size of Brittany.
- Brittany is larger by 11,900 km² (4,580 mi²), which is 77% of the area of Iwate.
- Measured in Belgiums: Brittany is about 0.89, Iwate about 0.50.
How they differ
- Brittany also has the larger population: 3.4 million against 1.2 million, 2.84× as many people.
- Per square kilometre that is 125 in Brittany against 78 in Iwate: Brittany is 1.61× as densely populated.
- Their centres are about 9,640 km apart.
- A standard web map misstates the comparison: Brittany at 48°N is drawn about 2.2× too large and Iwate at 40°N about 1.7×, so the map shows Brittany as 2.36× the size of Iwate instead of 1.77×.
- Together Brittany and Iwate cover 42,800 km², close to the size of Denmark (42,700 km², 0.3% smaller).
- The gap between them, 11,900 km², is about the size of Falkland Islands (11,600 km²).
- At Iwate's density, Brittany would have 2.1 million people (it has 3.4 million). At Brittany's density, Iwate would have 1.9 million (it has 1.2 million).
- Brittany's centre is 8.6° of latitude, about 960 km, farther north than Iwate'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.
- Iwate is the 2nd largest of the 47 prefectures of Japan and covers 4.1% of its area; it is the 46th most densely populated of them.
- Brittany lies about 9° of latitude (roughly 956 km) north of Iwate.
- Shared out evenly, each person in Brittany would have about 7,990 m² and each person in Iwate about 12,830 m².
- Laid side by side, Brittany and Iwate would cover 42,800 km², about the same size as Denmark.
- Together they have 4.6 million people, about as many people as Panama.
Side by side
| Brittany | Iwate | |
|---|---|---|
| Is a | RegionFrance | PrefectureJapan |
| Area, measured | 27,300 km²10,600 mi² | 15,500 km²5,970 mi² |
| Official area | 27,200 km²Wikidata | 15,300 km²Wikidata |
| Rank by area | 12th of 18in France | 2nd of 47in Japan |
| Population | 3.4 millionWikidata, 2022 | 1.2 millionWikidata, 2021 |
| Rank by population | 9th of 18in France | 32nd of 47in Japan |
| Density | 125 per km² | 78 per km² |
| Capital | Rennes | Morioka |
| Latitude range | 47°N to 49°N | 39°N to 40°N |
Population: Wikidata 2022 and Wikidata 2021. 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 15,300 km² agrees with our measured area of 15,500 km², to within 2%.
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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.
- 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