US dollar/Iranian rial exchange rate has remained relatively stable since 2003, when Iran’s Republic adopted a "managed floating exchange rate".

The rial ('IRR) is the name of Iran's currency. It was first introduced in 1798. One toman equals 10 rials.

The toman (تومان tumân) is no longer an official unit of Iranian currency, but Iranians usually quote money and prices of goods in tomans. For this purpose, one toman equals 10 rials.

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