As in many parts of the world, the US dollar is king in Asia and dollars can be changed just about anywhere. In Vietnam dollars also accepted for direct payment in hotels, restaurants, and shops. Some other currencies including Euros, GBP, Australian dollars… can also be changed in the major cities (Hanoi, Da Nang, Nha Trang, Da Lat, Ho Chi Minh city).
The currency in Vietnam is Đồng (Vnd) which is in notes and coins. Coins are not popular. Us dollars are widely accepted as payment for hotels., tours, transportation., etc. Currently the exchange rate is around Vnd 21.000 to US$ 1. The exchange rate may be different depending on the bank or the local merchant.
When departing, change any remaining Đồng back into dollars. This can be done at any Vietnam international airport in Hanoi, Da Nang or Ho Chi Minh city.
In Vietnam, change your currency to Vietnamese Dong and withdraw money with your credit card at one of the ATM’s which can be found anywhere, but in local currency dong.