The Cambodian riel is the official currency of Cambodia, abbreviated as KHR. It was first introduced in 1980 and is subdivided into 100 sen. The riel is used alongside the U.S. dollar, which is also widely accepted in the country, especially for larger transactions. The riel is issued by the National Bank of Cambodia and comes in both banknotes and coins. Banknotes are available in various denominations, including 1,000, 2,000, 5,000, 10,000, 20,000, 50,000, and 100,000 riel. The currency plays a crucial role in the local economy, particularly in everyday transactions.