North Korea is about 3.1 times smaller than Japan.

Japan is approximately 377,915 sq km, while North Korea is approximately 120,538 sq km, making North Korea 31.9% the size of Japan. Meanwhile, the population of Japan is ~124.2 million people (98.3 million fewer people live in North Korea).
This to-scale comparison of Japan vs. North Korea uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

Share this