South Korea is about 201 times bigger than Prague.

Prague is approximately 496 sq km, while South Korea is approximately 99,720 sq km, making South Korea 19,996% larger than Prague.
Tip: This to-scale comparison of Prague vs. South Korea uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.