The best exchange rate in Thailand is at Super Rich across the street from the burned out Central World Mall.
67 69 Rachadamri Rd. Lumpini
Patumwan กรุงเทพมหานคร 10330 ไทย
You can judge how good the exchange rate being offered by looking at the spread or difference between the buy and sell price.
As long as these are legitimate and a money changer really does stand ready to buy and sell at the posted price, the narrower the spread the better the rate they are offering.
If a crooked money changer knows that most of his action is on one side, e.g. only people buying Thai Baht, he can make his rate look good by showing a narrow spread but offering a bad price for buying Thai Baht and not be willing to sell Thai Baht at the advertised price.
This is not the case at Super Rich where they honor both buy and sell rates.
If the money changer is willing to buy and sell at his posted rates, then the spread can be used to judge how good his rates are.
Check out these rates from Super Rich.
The buy is 32.19 and the sell is 32.23 for transaction over $100USD– a spread of only .04 THB.
You can’t get narrower than that and, if you did the money you save wouldn’t be significant anyway.
Just in case you do decide to visit Super Rich, be warned that you need to bring ID–your passport or Thia driver’s license are accepted. They make a photocopy of it before you are allowed to transact.
SuperRich. The best exchange rates in Thailand.