Pick a country to load real-world assumptions, or enter your own starting population. Adjust fertility, mortality and migration to see how demographics evolve.
Loads population, TFR, life expectancy & migration from World Bank data for Japan. You can still adjust any value below.
Economy
Population (2106)
4.5M
Median age
50y
65+ share
30%
Dependency ratio
73%
Total population
10M
Japan
2026
GDP / capita (2106)
$146.3K
Total GDP (2106)
$651.6B
Real growth
+2.0%/yr
Economy size ×
2.2×
