Side-by-side comparison of Japan and Brunei across population, economy, quality of life, and more. Data updated 2026.
How do Japan and Brunei compare? Japan, located in East and Southeast Asia, has a population of 123.2M and covers an area of 377,915 km². Its GDP (PPP) stands at $5.7T with a GDP per capita of $46,100. Brunei, in East and Southeast Asia, has a population of 492K across 5,765 km², with a GDP of $36.6B and GDP per capita of $79,200. In terms of quality of life, Japan has a life expectancy of 85.2 years compared to Brunei's 78.9 years.
