Umbria is 1.02× the size of Hiroshima
Umbria (region of Italy) covers about 8,500 km² (3,280 mi²) and Hiroshima (prefecture of Japan) about 8,300 km² (3,210 mi²). Below, both outlines are drawn at one scale and centred on each other.
- 8,500km²Umbria
- 8,300km²Hiroshima
20 km
- Umbria
- Hiroshima
What fits
- Hiroshima is 98% of the size of Umbria.
- Umbria is larger by 198 km² (76.3 mi²), which is 2.4% of the area of Hiroshima.
- Measured in Belgiums: Umbria is about 0.28, Hiroshima about 0.27.
How they differ
- Umbria is larger, but Hiroshima has the larger population: 2.8 million against 882,000, 3.16× as many people.
- Per square kilometre that is 336 in Hiroshima against 104 in Umbria: Hiroshima is 3.24× as densely populated.
- Their centres are about 9,480 km apart.
- A standard web map misstates the comparison: Umbria at 43°N is drawn about 1.9× too large and Hiroshima at 35°N about 1.5×, so the map shows Umbria as 1.30× the size of Hiroshima instead of 1.02×.
- Together Umbria and Hiroshima cover 16,800 km², close to the size of Eswatini (17,100 km², 1.8% bigger).
- The gap between them, 198 km², is about the size of Aruba (170 km²).
- At Hiroshima's density, Umbria would have 2.9 million people (it has 882,000). At Umbria's density, Hiroshima would have 862,000 (it has 2.8 million).
- Umbria's centre is 8.4° of latitude, about 930 km, farther north than Hiroshima's.
- Umbria is the 16th largest of the 20 regions of Italy and covers 2.8% of its area; it is the 15th most densely populated of them.
- Hiroshima is the 12th largest of the 47 prefectures of Japan and covers 2.2% of its area; it is the 16th most densely populated of them.
- Umbria lies about 8° of latitude (roughly 930 km) north of Hiroshima.
- Shared out evenly, each person in Umbria would have about 9,640 m² and each person in Hiroshima about 2,970 m².
- Laid side by side, Umbria and Hiroshima would cover 16,800 km², about the same size as Eswatini.
- Together they have 3.7 million people, 96% as many people as Bosnia and Herzegovina.
Side by side
| Umbria | Hiroshima | |
|---|---|---|
| Is a | RegionItaly | PrefectureJapan |
| Area, measured | 8,500 km²3,280 mi² | 8,300 km²3,210 mi² |
| Official area | 8,460 km²Wikidata | 8,480 km²Wikidata |
| Rank by area | 16th of 20in Italy | 12th of 47in Japan |
| Population | 882,000Wikidata, 2019 | 2.8 millionWikidata, 2021 |
| Rank by population | 17th of 20in Italy | 12th of 47in Japan |
| Density | 104 per km² | 336 per km² |
| Capital | Perugia | Hiroshima |
| Latitude range | 42°N to 44°N | 34°N to 35°N |
Population: Wikidata 2019 and Wikidata 2021. Official figures: Wikidata (CC0).
- Wikidata's official figure of 8,460 km² agrees with our measured area of 8,500 km², to within 2%.
- Our measured 8,300 km² is 2.1% below Wikidata's official figure of 8,480 km². Official figures can include inland water or count land that an outline draws differently.
Similar in size to Umbria
Similar in size to Hiroshima
More from the same country
More comparisons
Send it to someone who won’t believe it
Sources and method
- Outlines
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain. The outline of Umbria 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