The peso is the currency of Chile. The current peso has circulated since 1975, with a previous version circulating between 1817 and 1960. Its symbol is defined as a letter S with either one or two vertical bars superimposed prefixing the amount, $ or ; the single-bar symbol, available in most modern text systems, is almost always used. Both of these symbols are used by many currencies, most notably the United States dollar, and may be ambiguous without clarification, such as CLP$ or US$. The ISO 4217 code for the present peso is CLP. It was divided into 100 centavos until 31 May 1996, when the subdivision was formally eliminated. In February 2023, the exchange rate was around CLP$800 to US$1.

ISO 4217 is a standard published by the International Organization for Standardization (ISO) that defines alpha codes and numeric codes for the representation of currencies and provides information about the relationships between individual currencies and their minor units. This data is published in three tables:Table A.1 – Current currency & funds code list Table A.2 – Current funds codes Table A.3 – List of codes for historic denominations of currencies & funds