Louisiana is about 139 times bigger than Kiribati.

Kiribati is approximately 811 sq km, while Louisiana is approximately 112,825 sq km, making Louisiana 13,812% larger than Kiribati. Meanwhile, the population of Kiribati is ~114,189 people (4.4 million more people live in Louisiana).
Tip: This to-scale comparison of Kiribati vs. Louisiana uses the Mercator projection, which distorts the size of regions near the poles.