Saudi Arabia is about 23 times bigger than Indiana.

Indiana is approximately 92,895 sq km, while Saudi Arabia is approximately 2,149,690 sq km, making Saudi Arabia 2,214% larger than Indiana. Meanwhile, the population of Indiana is ~6.5 million people (28.9 million more people live in Saudi Arabia).
Tip: This to-scale comparison of Indiana vs. Saudi Arabia uses the Mercator projection, which distorts the size of regions near the poles.