OANDA's currency calculator tools use OANDA Rates™, the touchstone FX rates compiled from leading market data contributors.
These values represent the daily average of the Bid and Ask rates OANDA receives from many data sources.
USD - US Dollar
The US dollar (USD) is the official currency of the United States of America. It is the world’s most widely traded currency.
SLE - Sierra Leone Leone
The Sierra Leonean leone (SLE) is the official currency of Sierra Leone. The leone is subdivided into 100 cents. The currency’s symbol is Le.
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