Originally Posted by mecabq

The rates are variable. In the last few days, I got 31,200 IRR per USD at the airport (after having to ask three different places -- the first two refused, before even seeing my crisp $100 bill, for whatever reason), 28K at the hotel, and saw a bit higher -- like 32K-34K -- in the city near the bazaar. If this is a major issue for you, I guess you can shop around, though it hardly seems worth bothering outside the airport unless you have to and/or are spending a lot.