Hi.

If I don't exceed the 90-day limit specified in the statement: "Passport holders from the countries below can visit Thailand without a visa for the maximum of 30 days stay per entry with a total peroid of stay not exceeding 90 days within 6 months from the date of first entry into the kingdom."

Then how many times can I exit and re-enter Thailand?

I'm a 25 year old US passport holder. I'm trying to clarify this because I'm planning to travel a lot in the region over a 4-month period and want to fly out of Bangkok to a few different places, which would require turning to Thailand a few times.

There is no limit on the number of trips.