AFRICA

IO flag British Indian Ocean Territory

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Last Updated Apr 27, 2026
IO flag British Indian Ocean Territory
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About British Indian Ocean TerritoryOverview, geography, and key facts
Flag of British Indian Ocean Territory

The British Indian Ocean Territory (BIOT) is a British Overseas Territory situated in the Indian Ocean. The territory comprises the seven atolls of the Chagos Archipelago with over 1,000 individual islands, many very small, amounting to a total land area of 60 square kilometres. The largest and most southerly island is Diego Garcia, 27 square kilometres, the site of a Joint Military Facility of the United Kingdom and the United States. Official administration is remote from London, though the local capital is often regarded as being on Diego Garcia.

Capital Diego Garcia
Area 60 km²
Languages English
Currency United States dollar (USD)
Source: U.S. Department of State, Wikipedia, REST Countries API

Currency & Economy

Currency
United States dollar (USD)
Geography & Practical Details
Region
Africa
Capital
Diego Garcia
Area
60 km²
Timezone
UTC+06:00
Languages
English
Calling Code
+246
Drives On
Right
ISO Code
IO