The monetary unit in Iran is the Iranian Rial, internationally abbreviated into RI or Ris. The value of the coins is indicated in Persian figures, the bank notes have the figures printed on one side in Persian and on the other in Latin numerals. In their daily dealings, Iranians use and old currency unit called tuman, worth 10 Rials. In compliance with new currency policies and for the convenience of the foreigners, hotel and travel tour rates and the price of carpets are expressed in US dollars.
Banks are plentiful and are to be found everywhere, even in very small towns.
They are easily recognizable because of their large facades. But only a certain number change foreign currency. Exchange counters are usually open between 8 a.m. and 4 p.m. and at the airport for the arrival of international flights. Some currency exchange offices operate on Fridays as well. The fairest exchange rates are offered by the banking system.