The official currency is ANG (Dutch Antillian Guilder). The exchange rate to the US$ is fixed at ANG 1,78 to 1 dollar. US-currency is also accepted, only US$ 100 notes are sometimes not taken. At every ATM you may choose between local currency (ANG) and US$. Outside of Curacao it is impossible to convert ANG to any other currency, no bank will accept ANG.