Prague is about 541 times smaller than Colorado.

Colorado is approximately 268,627 sq km, while Prague is approximately 496 sq km, making Prague 0.18% the size of Colorado.
Tip: This to-scale comparison of Colorado 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.