Indiana is about 210 times bigger than Antigua and Barbuda.

Antigua and Barbuda is approximately 443 sq km, while Indiana is approximately 92,895 sq km, making Indiana 20,888% larger than Antigua and Barbuda. Meanwhile, the population of Antigua and Barbuda is ~100,335 people (6.4 million more people live in Indiana).
Tip: This to-scale comparison of Antigua and Barbuda vs. Indiana uses the Mercator projection, which distorts the size of regions near the poles.