Hainan is 1.33× the size of Piedmont
Hainan (province of China) covers about 33,800 km² (13,100 mi²) and Piedmont (region of Italy) about 25,500 km² (9,850 mi²). Below, both outlines are drawn at one scale and centred on each other.
- 33,800km²Hainan
- 25,500km²Piedmont
50 km
- Hainan
- Piedmont
What fits
- Piedmont is 75% of the size of Hainan.
- Hainan is larger by 8,330 km² (3,220 mi²), which is 33% of the area of Piedmont.
- Measured in Belgiums: Hainan is about 1.10, Piedmont about 0.83.
How they differ
- Hainan also has the larger population: 10.1 million against 4.3 million, 2.32× as many people.
- Per square kilometre that is 298 in Hainan against 170 in Piedmont: Hainan is 1.75× as densely populated.
- Their centres are about 9,400 km apart.
- On a standard web map Piedmont looks larger than Hainan: Hainan at 19°N is drawn about 1.1× too large and Piedmont at 45°N about 2.0×, so the map shows Piedmont as 1.35× the size of Hainan, when Hainan is 1.33× the size of Piedmont.
- Together Hainan and Piedmont cover 59,400 km², close to the size of Togo (56,900 km², 4.2% smaller).
- The gap between them, 8,330 km², is about the size of Lebanon (10,000 km²).
- At Piedmont's density, Hainan would have 5.8 million people (it has 10.1 million). At Hainan's density, Piedmont would have 7.6 million (it has 4.3 million).
- Piedmont's centre is 25.9° of latitude, about 2,880 km, farther north than Hainan's.
- Hainan is the 28th largest of the 31 provinces and regions of China and covers 0.4% of its area; it is the 15th most densely populated of them.
- Piedmont is the 2nd largest of the 20 regions of Italy and covers 8.5% of its area; it is the 9th most densely populated of them.
- Piedmont lies about 26° of latitude (roughly 2,880 km) north of Hainan.
- Shared out evenly, each person in Hainan would have about 3,360 m² and each person in Piedmont about 5,880 m².
- Laid side by side, Hainan and Piedmont would cover 59,400 km², 1.04× the size of Togo.
- Together they have 14.4 million people, about as many people as Rwanda.
Side by side
| Hainan | Piedmont | |
|---|---|---|
| Is a | ProvinceChina | RegionItaly |
| Area, measured | 33,800 km²13,100 mi² | 25,500 km²9,850 mi² |
| Official area | 33,900 km²Wikidata | 25,400 km²Wikidata |
| Rank by area | 28th of 31in China | 2nd of 20in Italy |
| Population | 10.1 millionWikidata, 2020 | 4.3 millionWikidata, 2019 |
| Rank by population | 28th of 31in China | 7th of 20in Italy |
| Density | 298 per km² | 170 per km² |
| Capital | Haikou | Turin |
| Latitude range | 18°N to 20°N | 44°N to 46°N |
Population: Wikidata 2020 and Wikidata 2019. Official figures: Wikidata (CC0).
- Wikidata's official figure of 33,900 km² agrees with our measured area of 33,800 km², to within 2%.
- Wikidata's official figure of 25,400 km² agrees with our measured area of 25,500 km², to within 2%.
Similar in size to Hainan
Similar in size to Piedmont
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Sources and method
- Outlines
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain. The outline of Piedmont 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