The Australian dollar is the official currency and legal tender of Australia, including all of its external territories, and three independent sovereign Pacific Island states: Kiribati, Nauru, and Tuvalu. In April 2025, it was the seventh most-traded currency in the foreign exchange market and as of Q1 2024 the sixth most-held reserve currency in global reserves.
The Australian dollar was introduced as a decimal currency on 14 February 1966 to replace the non-decimal Australian pound, with the conversion rate of two dollars to the pound. It is subdivided into 100 cents. The $ symbol precedes the amount. On the introduction of the currency, the $ symbol was intended to have two strokes, but the version with one stroke has also always been acceptable.
In 2023, there were A$4.4 billion in coins and A$101.3 billion in notes of Australian currency in circulation, or around A$6,700 per person in Australia, which includes cash reserves held by the banking system and cash in circulation in other countries or held as a foreign exchange reserve.Wikipedia