Nationals of 167 countries and 2 special regions can get a free 30-day non extendable visa.
This 30 day free Indonesia visa is valid for the purpose of;
The following link is the lists of countries that allowed to buy VoA in every Immigration Ports for staying more than 30 days with option to extend another 30 days.
The VoA cannot be converted into any other kind of visa. Also be aware that Immigration officials calculate the 30-day period as follows: your arrival day is counted as your first day, and you must leave the country on the 30th. day!
For more information about Visa on arrival please visit this page: Visa on Arrival