US Dollar (USD; symbol US$) = 100 cents. Notes are in denominations of US$100, 50, 20, 10, 5, 2 and 1. Coins are in denominations of US$1, and 50, 25, 10, 5 and 1 cents. For exchange rates and currency restrictions, see the USA section.

There are numerous US and international banks on the island.

Most major credit and charge cards are widely accepted on Guam. ATMs are available at the airport, some hotels, shopping malls and grocery stores. Cirris, Plus and Star allow international financial transactions.

Traveller's cheques are accepted. To avoid additional exchange rate charges, travellers are advised to take traveller's cheques in US Dollars.

Mon-Thurs 1000-1500, Fri 1000-1800, Sat 0900-1200. Hours may vary slightly.