Side-by-side comparison of United States and Japan across population, economy, quality of life, and more. Data updated 2026.
How do United States and Japan compare? United States, located in North America, has a population of 338.0M and covers an area of 9.8M km². Its GDP (PPP) stands at $25.7T with a GDP per capita of $75,500. Japan, in East and Southeast Asia, has a population of 123.2M across 377,915 km², with a GDP of $5.7T and GDP per capita of $46,100. In terms of quality of life, United States has a life expectancy of 80.9 years compared to Japan's 85.2 years.