Visa Free travel is the ability to visit a country without having to complete lengthy visa procedures. Nationals of a country can have visa-free travel to another country if the governments of those two countries signed an agreement to that effect, or if the receiving country unilaterally opened its borders.
Here are the Visa Free countries for Iran passport holders.
Duration of stay
30 days. Not required by bona fide tourists staying less than 30 days with return or onward tickets and sufficient funds for length of stay. Extensions are available by applying to the Immigration Office before arrival