Country size comparison
compared to
Japan is about 466 times bigger than Kiribati.
Kiribati is approximately 811 sq km, while Japan is approximately 377,915 sq km, making Japan 46,499% larger than Kiribati. Meanwhile, the population of Kiribati is ~114,189 people (124.1 million more people live in Japan).
Compare further: Japan vs. Kiribati