With 60 days visa to Thailand.
How many 30 days extension do they allow?
If u do a border run, how many days do u get when u come back?
TIA.
TLDR : Answer Summary
With a 60-day tourist visa for Thailand, you are eligible for one 30-day extension. If you perform a border run and return, the length of stay you receive depends on your nationality. Nationals from countries eligible for visa-exempt entry can be stamped for 45 days if entering before April 1st, or 30 days if entering on or after that date, with the possibility of one additional 30-day extension.