Prague is about 1.9 times bigger than Saint Kitts and Nevis.

Saint Kitts and Nevis is approximately 261 sq km, while Prague is approximately 496 sq km, making Prague 90% larger than Saint Kitts and Nevis.
Tip: This to-scale comparison of Saint Kitts and Nevis vs. Prague 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.