Kansas is about 1.6 times bigger than Nicaragua.

Nicaragua is approximately 130,370 sq km, while Kansas is approximately 211,900 sq km, making Kansas 63% larger than Nicaragua. Meanwhile, the population of Nicaragua is ~6.3 million people (3.4 million fewer people live in Kansas).
Tip: This to-scale comparison of Nicaragua vs. Kansas uses the Mercator projection, which distorts the size of regions near the poles.