Ubon Ratchathani is 2.09× the size of Okayama

Ubon Ratchathani (province of Thailand) covers about 14,500 km² (5,610 mi²) and Okayama (prefecture of Japan) about 6,930 km² (2,680 mi²). Below, both outlines are drawn at one scale and centred on each other.

50 km
  • Ubon Ratchathani
  • Okayama

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How they differ

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Ubon RatchathaniOkayama
Is aProvinceThailandPrefectureJapan
Area, measured14,500 km²5,610 mi²6,930 km²2,680 mi²
Official area15,700 km²Wikidata7,110 km²Wikidata
Rank by area5th of 77in Thailand18th of 47in Japan
Population1.9 millionWikidata, 20201.9 millionWikidata, 2021
Rank by population3rd of 77in Thailand20th of 47in Japan
Density129 per km²271 per km²
CapitalUbon RatchathaniOkayama
Latitude range14°N to 16°N34°N to 35°N

Population: Wikidata 2020 and Wikidata 2021. Official figures: Wikidata (CC0).

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Ubon Ratchathani is 2.09× the size of Okayama: outlines of Ubon Ratchathani and Okayama at the same scale
Outlines are drawn at true scale.
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

Full method