Population
🇮🇴 British Indian Ocean TerritoryNo data
🇲🇬 Madagascar31,964,956
Population data is unavailable for British Indian Ocean Territory, so a relative difference cannot be calculated.
Country comparison
British Indian Ocean TerritoryvsMadagascar
See the biggest differences first, then scan the geographic, economic, and practical reference data.
This comparison uses the latest available atlas values for each country; reporting years can differ by metric.
What stands out
Proportional bars and relative differences make the headline numbers easier to read.
Surface area
🇮🇴 British Indian Ocean TerritoryNo data
🇲🇬 Madagascar587,295 km²
Surface area data is unavailable for British Indian Ocean Territory, so a relative difference cannot be calculated.
Population density
🇮🇴 British Indian Ocean TerritoryNo data
🇲🇬 Madagascar54.4 /km²
Population density data is unavailable for British Indian Ocean Territory, so a relative difference cannot be calculated.
Nominal GDP
🇮🇴 British Indian Ocean TerritoryNo data
🇲🇬 Madagascar$17.42 billion · 2024
Nominal GDP data is unavailable for British Indian Ocean Territory, so a relative difference cannot be calculated.
GDP per capita
🇮🇴 British Indian Ocean TerritoryNo data
🇲🇬 Madagascar$545 · 2024
GDP per capita data is unavailable for British Indian Ocean Territory, so a relative difference cannot be calculated.
Values use the latest available observations in WorldSumma. Economic reporting years are shown when available and can differ by country.
Full side-by-side comparison
Capital
Diego Garcia
Antananarivo
Population
—
31,964,956
Surface area
—
587,295 km²
Population density
—
54.4 /km²
Nominal GDP
—
$17.42 billion · 2024
GDP per capita
—
$545 · 2024
Region
Africa
Africa
Subregion
Eastern Africa
Eastern Africa
Currency
United States dollar · USD · $
Malagasy ariary · MGA · Ar
Nationality
BIOT
Malagasy
Phone code
+246
+261
Internet domain
.io
.mg
ISO codes
IO / IOT
MG / MDG
Time zone
Indian/Chagos
Indian/Antananarivo
Native name
British Indian Ocean Territory
Madagasikara
| Measure | British Indian Ocean Territory | Madagascar |
|---|---|---|
| Capital | Diego Garcia | Antananarivo |
| Population | — | 31,964,956 |
| Surface area | — | 587,295 km² |
| Population density | — | 54.4 /km² |
| Nominal GDP | — | $17.42 billion · 2024 |
| GDP per capita | — | $545 · 2024 |
| Region | Africa | Africa |
| Subregion | Eastern Africa | Eastern Africa |
| Currency | United States dollar · USD · $ | Malagasy ariary · MGA · Ar |
| Nationality | BIOT | Malagasy |
| Phone code | +246 | +261 |
| Internet domain | .io | .mg |
| ISO codes | IO / IOT | MG / MDG |
| Time zone | Indian/Chagos | Indian/Antananarivo |
| Native name | British Indian Ocean Territory | Madagasikara |
Compare a different pair
Keep one country, change both, or start a completely new comparison.
Country overviews
AI-assisted profile prose · methodologyAbout British Indian Ocean Territory
The British Indian Ocean Territory (BIOT) is a remote British Overseas Territory scattered across the central Indian Ocean, best known for its strategic military base on Diego Garcia and its pristine coral atolls that whisper of an untouched tropical paradise.
Full British Indian Ocean Territory profile →About Madagascar
Madagascar, officially the Republic of Madagascar, is the world's fourth-largest island located in the Indian Ocean off the southeastern coast of Africa. With a population of over 26 million, it is known for its unique biodiversity, distinctive cultures, and vibrant arts.
Full Madagascar profile →British Indian Ocean Territory & Madagascar: Frequently Asked Questions
What is the capital of British Indian Ocean Territory?
The capital of British Indian Ocean Territory is Diego Garcia.
What currency is used in British Indian Ocean Territory?
British Indian Ocean Territory uses the United States dollar (USD), with the symbol $.
Where is British Indian Ocean Territory located?
British Indian Ocean Territory is located in Eastern Africa, Africa.
What are people from British Indian Ocean Territory called?
People from British Indian Ocean Territory are referred to as BIOT.
What is the phone calling code for British Indian Ocean Territory?
The international dialing code for British Indian Ocean Territory is +246.
What is the internet domain for British Indian Ocean Territory?
The country code top-level domain (ccTLD) for British Indian Ocean Territory is .io.
What time zone is British Indian Ocean Territory in?
British Indian Ocean Territory uses the Indian/Chagos time zone.
What is British Indian Ocean Territory known for?
The British Indian Ocean Territory (BIOT) is a remote British Overseas Territory scattered across the central Indian Ocean, best known for its strategic military base on Diego Garcia and its pristine coral atolls that whisper of an untouched tropical paradise.
What is the capital of Madagascar?
The capital of Madagascar is Antananarivo.
What is the population of Madagascar?
Madagascar has a recorded population of approximately 31,964,956 people.
How big is Madagascar?
Madagascar covers an area of about 587,295 km².
What is the population density of Madagascar?
Madagascar has a population density of roughly 54.4 /km² (people per square kilometre).
What is the GDP of Madagascar?
Madagascar has a gross domestic product (GDP) of approximately $17.42 billion as of 2024.
What is the GDP per capita of Madagascar?
Madagascar has a GDP per capita of approximately $545.
What currency is used in Madagascar?
Madagascar uses the Malagasy ariary (MGA), with the symbol Ar.
Where is Madagascar located?
Madagascar is located in Eastern Africa, Africa.
What is the native name of Madagascar?
The native name of Madagascar is Madagasikara.
What are people from Madagascar called?
People from Madagascar are referred to as Malagasy.
What is the phone calling code for Madagascar?
The international dialing code for Madagascar is +261.
What is the internet domain for Madagascar?
The country code top-level domain (ccTLD) for Madagascar is .mg.
What time zone is Madagascar in?
Madagascar uses the Indian/Antananarivo time zone.
What is Madagascar known for?
Madagascar, officially the Republic of Madagascar, is the world's fourth-largest island located in the Indian Ocean off the southeastern coast of Africa. With a population of over 26 million, it is known for its unique biodiversity, distinctive cultures, and vibrant arts.