India has a significantly larger population than Japan. Both India and Japan are densely populated countries. The table below compares the population, total fertility rate (TFR), and the percentage of the population in different age groups in the two countries.
2025 estimate
India
Japan
Population
1.46 billion
123.1 million
Population aged 0-14
24.2%
11%
Population aged 15-64
68.7%
59%
Population aged 65 and older
7%
30%
Total fertility rate, per woman
1.9
1.2
Source: United Nations Population Fund (UNFPA)
Life
India
Japan
Life expectancy at birth (2023/UN)
72
84.71
Human Development Index rank (2023)
130th
23rd
Human Development Index value
0.685
0.925
Overview
India is about 8.7 times larger than Japan. It is one of the largest countries in the world, ranking seventh globally in terms of area. Japan also covers a considerable area and is among the largest island countries.