Rondônia is 21.9× the size of Udon Thani
Rondônia (state of Brazil) covers about 238,000 km² (91,900 mi²) and Udon Thani (province of Thailand) about 10,900 km² (4,200 mi²). Below, both outlines are drawn at one scale and centred on each other.
- 238,000km²Rondônia
- 10,900km²Udon Thani
200 km
- Rondônia
- Udon Thani
What fits
- Udon Thani fits inside Rondônia about 21.9 times by area.
- Rondônia is larger by 227,000 km² (87,700 mi²), which is 2,089% of the area of Udon Thani.
- Measured in Belgiums: Rondônia is about 7.76, Udon Thani about 0.35.
How they differ
- Rondônia also has the larger population: 1.6 million against 1.6 million, 1.01× as many people.
- Per square kilometre that is 144 in Udon Thani against 6.6 in Rondônia: Udon Thani is 21.7× as densely populated.
- Their centres are about 18,300 km apart.
- Together Rondônia and Udon Thani cover 249,000 km², close to the size of Guinea (244,000 km², 1.8% smaller).
- The gap between them, 227,000 km², is about the size of Laos (228,000 km²).
- At Udon Thani's density, Rondônia would have 34.3 million people (it has 1.6 million). At Rondônia's density, Udon Thani would have 72,000 (it has 1.6 million).
- Udon Thani's centre is 28.3° of latitude, about 3,150 km, farther north than Rondônia's.
- Rondônia is the 13th largest of the 27 states and districts of Brazil and covers 2.8% of its area; it is the 20th most densely populated of them.
- Udon Thani is the 13th largest of the 77 provinces of Thailand and covers 2.1% of its area; it is the 29th most densely populated of them.
- Udon Thani lies about 28° of latitude (roughly 3,150 km) north of Rondônia, on the other side of the equator.
- Shared out evenly, each person in Rondônia would have about 150,490 m² and each person in Udon Thani about 6,930 m².
- Laid side by side, Rondônia and Udon Thani would cover 249,000 km², about the same size as Guinea.
- Together they have 3.1 million people, 1.07× as many people as Armenia.
Side by side
| Rondônia | Udon Thani | |
|---|---|---|
| Is a | StateBrazil | ProvinceThailand |
| Area, measured | 238,000 km²91,900 mi² | 10,900 km²4,200 mi² |
| Official area | 238,000 km²Wikidata | 11,700 km²Wikidata |
| Rank by area | 13th of 27in Brazil | 13th of 77in Thailand |
| Population | 1.6 millionWikidata, 2022 | 1.6 millionWikidata, 2020 |
| Rank by population | 23rd of 27in Brazil | 7th of 77in Thailand |
| Density | 6.6 per km² | 144 per km² |
| Capital | Porto Velho | Udon Thani |
| Latitude range | 14°S to 8°S | 17°N to 18°N |
Population: Wikidata 2022 and Wikidata 2020. Official figures: Wikidata (CC0).
- Wikidata's official figure of 238,000 km² agrees with our measured area of 238,000 km², to within 2%.
- Our measured 10,900 km² is 7.3% below Wikidata's official figure of 11,700 km². Official figures can include inland water or count land that an outline draws differently. This difference is flagged for review.
Similar in size to Rondônia
Similar in size to Udon Thani
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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