The official currency of Bangkok is the Thai 'Baht' (THB). Paper currency (notes) comes in the range of 10 to 1000 baht and coins are issued in denominations ranging from 0.25 to 10 baht. All Thai currency has both western and Thai numerals written on them. The main coins in circulation are 1 baht, 5 baht and 10 baht. Furthermore, 1 baht is divided into 'satang' (1 baht=100 satang), and satang coins are available in denominations of 25 satang and 50 satang. Various transactions also happen via plastic money, in the form of debit and credit cards. For overseas visitors, currency conversion poses no problem.
One of the best things about money exchange in Bangkok is that it
offers better exchange rates than any other part of Thailand. Now, if
you want to opt for currency conversion in the city, make sure that you
exchange money only at a bank or similar foreign exchange facility,
which gives the best exchange rates. You can also exchange money at the
major hotels of the city. However, banks and money exchangers offer a
better exchange rate as compared to these hotels. Many tourists also
prefer exchanging currency at the international airport or the currency
exchange outlets located near tourist areas.
Another thing to keep in mind is that traveler's cheques get better
exchange rate as compared to cash. Therefore, if you want to avoid
additional exchange rate charges, better carry traveler's cheques, if
possible AMEX traveler's cheques, and convert them into local Thai Baht,
in a bank or a similar establishment. Besides, even though most Asian
and European currencies find acceptance, it is better to bring U.S
dollars or British pounds. Moreover, large denominations of money give a
better exchange rate as compared to smaller denominations.