The Norwegian krone (NOK) is the official currency of Norway. It is subdivided into 100 øre and is symbolized by "kr." The krone has been in use since 1875 and is managed by the Central Bank of Norway. The value of the krone can fluctuate based on various economic factors, including oil prices, as Norway is a significant oil producer. The currency is commonly used in everyday transactions within Norway and is also traded on international markets.