The Malaysian currency is the Ringgit (RM), which is divided into 100 sen. Ringgit notes are in denominations of RM100, RM50, RM20, RM10, RM5, and RM2. Coins are issued in denominations of RM1, 50 sen, 20 sen, 10 sen, 5 sen and 1 Sen.

Foreign currencies are not accepted in Malaysia.

Currency conversion is relatively easy in a place like Langkawi. The best place to do it is from one of the numerous money changers at the Langkawi International Airport.

One can also do the same from any of the banks in the city like Maybank, Public Bank, RHB Bank, Bank Islam, etc. ATMs  of the above mentioned banks are widely available. Licensed money changers can also be found in and around Kuah town, Jetty Point Complex, Padang Matsirat.

Some of the hotels in the island provide money changing facilities. International Credit/Debit cards like American Express, Diners Club, MasterCard and Visa are accepted in most parts of the island.

For each money conversion transaction, banks usually charge a commission of USD 2-3. Another option is to approach any of the money changers who don't charge commission and are much faster. The rates though vary from place to place.