Aosta Valley is 1.78× the size of Kagawa
Aosta Valley (region of Italy) covers about 3,300 km² (1,280 mi²) and Kagawa (prefecture of Japan) about 1,850 km² (716 mi²). Below, both outlines are drawn at one scale and centred on each other.
- 3,300km²Aosta Valley
- 1,850km²Kagawa
20 km
- Aosta Valley
- Kagawa
What fits
- Kagawa is 56% of the size of Aosta Valley.
- Aosta Valley is larger by 1,450 km² (560 mi²), which is 78% of the area of Kagawa.
- Measured in Belgiums: Aosta Valley is about 0.11, Kagawa about 0.06.
How they differ
- Aosta Valley is larger, but Kagawa has the larger population: 949,000 against 126,000, 7.55× as many people.
- Per square kilometre that is 512 in Kagawa against 38 in Aosta Valley: Kagawa is 13.5× as densely populated.
- Their centres are about 9,630 km apart.
- A standard web map misstates the comparison: Aosta Valley at 46°N is drawn about 2.1× too large and Kagawa at 34°N about 1.5×, so the map shows Aosta Valley as 2.50× the size of Kagawa instead of 1.78×.
- Together Aosta Valley and Kagawa cover 5,160 km², close to the size of Trinidad and Tobago (5,120 km², 0.7% smaller).
- The gap between them, 1,450 km², is about the size of Comoros (1,670 km²).
- At Kagawa's density, Aosta Valley would have 1.7 million people (it has 126,000). At Aosta Valley's density, Kagawa would have 70,000 (it has 949,000).
- Aosta Valley's centre is 11.5° of latitude, about 1,280 km, farther north than Kagawa's.
- Aosta Valley is the 20th largest of the 20 regions of Italy and covers 1.1% of its area; it is the 20th most densely populated of them.
- Kagawa is the 47th largest of the 47 prefectures of Japan and covers 0.5% of its area; it is the 11th most densely populated of them.
- Aosta Valley lies about 11° of latitude (roughly 1,280 km) north of Kagawa.
- Shared out evenly, each person in Aosta Valley would have about 26,290 m² and each person in Kagawa about 1,950 m².
- Laid side by side, Aosta Valley and Kagawa would cover 5,160 km², about the same size as Trinidad and Tobago.
- Together they have 1.1 million people, 93% as many people as Djibouti.
- Kagawa is drawn from 94 points: at a size under 2,500 km² the outline is a sketch, so the overlap shows the proportions rather than the exact shape.
Side by side
| Aosta Valley | Kagawa | |
|---|---|---|
| Is a | RegionItaly | PrefectureJapan |
| Area, measured | 3,300 km²1,280 mi² | 1,850 km²716 mi² |
| Official area | 3,260 km²Wikidata | 1,860 km²Wikidata |
| Rank by area | 20th of 20in Italy | 47th of 47in Japan |
| Population | 126,000Wikidata, 2019 | 949,000Wikidata, 2020 |
| Rank by population | 20th of 20in Italy | 38th of 47in Japan |
| Density | 38 per km² | 512 per km² |
| Capital | Aosta | Takamatsu |
| Latitude range | 45°N to 46°N | 34°N to 35°N |
Population: Wikidata 2019 and Wikidata 2020. Official figures: Wikidata (CC0).
- Wikidata's official figure of 3,260 km² agrees with our measured area of 3,300 km², to within 2%.
- Wikidata's official figure of 1,860 km² agrees with our measured area of 1,850 km², to within 2%.
Similar in size to Aosta Valley
Similar in size to Kagawa
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Sources and method
- Outlines
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
- 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
