India vs Japan

India is 8.7 times larger than Japan — 3,287,263 against 377,915 km². India is 12 times more populous than Japan — 1,463,865,525 against 123,366,734 people.

Side by side

Population density

India is 1.4 times more densely populated than Japan — 445 against 326 people per km². Density is where area and population interact, and it often reverses the impression the headline figures give — a large country with a small population can feel emptier than a small crowded one by an enormous margin.

Practical differences

• Different currencies: the Indian rupee and the Japanese yen.

India

The most populous country in the world since 2023. The Ganges-Brahmaputra system drains the southern Himalaya into the largest delta on Earth, and Mawsynram and Cherrapunji in Meghalaya are the wettest inhabited places on record, with roughly 11 m of rain a year. Mumbai is the largest individual municipality; the Delhi urban agglomeration, which contains the capital, is larger still at around 33 million.

Japan

A 2023 government survey using digital mapping counted 14,125 islands, more than double the long-quoted figure of 6,852. About three-quarters of the land is mountain, so nearly everyone lives on a narrow band of coastal plain. Japan sits where four tectonic plates meet and records a fifth of the world's magnitude-6-and-above earthquakes.

Neutral facts only. Nothing here addresses politics, government, economics or which country is preferable in any respect — population is the one figure that dates, and it carries its year.