The currency of Cambodia is called “Riel”, and there is, however, no need to change the currency into riel as US dollars are accepted everywhere. Please kindly note that ripped, torn, or old bills will not be accepted.
ATM machines are available in the main cities across the country, mostly in Siem Reap and Phnom Penh. Banks are open Monday to Friday from 8:00 AM to 3:00 PM and on Saturday morning until 12:00 PM.
Most hotels and restaurants in the major cities will charge US dollars, but for other currencies, it is advisable to visit a bank. Traveler’s checks can be exchanged at banks and some hotels, but they are not usable outside of major cities.
We would highly recommend using a Visa or Master Card, as they are now accepted in many hotels, restaurants, and shops in Phnom Penh and Siem Reap. If you wish to travel in a local taxi or Tuk-Tuk, make sure to have the right amount of cash and change with you, as the drivers are unlikely to keep a lot of cash with them.
Allow $20 per day for basic living expenses (drinks, meals, etc). A bottle of local beer will set you back roughly $1, a two-course lunch will set you back $7, and a two-course dinner would set you back $10.