Saint Kitts and Nevis is about 539 times smaller than Wisconsin.

Wisconsin is approximately 140,663 sq km, while Saint Kitts and Nevis is approximately 261 sq km, making Saint Kitts and Nevis 0.19% the size of Wisconsin. Meanwhile, the population of Wisconsin is ~5.7 million people (5.6 million fewer people live in Saint Kitts and Nevis).
Tip: This to-scale comparison of Wisconsin vs. Saint Kitts and Nevis 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.