Indonesia vs Japan
Population, economy and geography side by side
vs
Indonesia has 2.3 times as many people as Japan (288 million vs 123 million in 2026). Indonesia is 5.2 times larger by land area. GDP per capita is higher in Japan ($35,951 vs $5,060). People live longer on average in Japan (84.0 vs 71.3 years).
| Indonesia | Japan | |
|---|---|---|
| Population (2026) | 287,886,782 | 122,585,904 |
| Yearly population change | +0.76% | −0.63% |
| Population 2050 (projected) | 321 million | 105 million |
| Land area | 1,892,410 km² | 364,500 km² |
| Density | 152/km² | 336/km² |
| GDP | $1.45 trillion (2025) | $4.44 trillion (2025) |
| GDP per capita | $5,060 (2025) | $35,951 (2025) |
| Life expectancy | 71.3 years | 84.0 years |
| Births per woman | 2.12 | 1.15 |
| Urban population | 59% | 92% |
| Capital | Jakarta and Nusantara | Tokyo |
| Currency | rupiah (IDR) | yen (JPY) |
| Calling code | +62 | +81 |
Share of world population: Indonesia 3.47%, Japan 1.48%.
Frequently asked questions
Which has a bigger population, Indonesia or Japan?
Indonesia: about 288 million people versus 123 million in Japan (2026).
Is Indonesia bigger than Japan?
By land area, Indonesia is larger: 1,892,410 km² versus 364,500 km².
Which economy is bigger, Indonesia or Japan?
Japan, with a GDP of $4.44 trillion versus $1.45 trillion (World Bank, current US$).
Sources: World Bank Open Data — World Development Indicators and Population Estimates and Projections (CC BY 4.0); Wikidata (CC0). Retrieved 2026-10-22. GDP in current US dollars (World Bank, latest available year).