Hijri and Persian calender converter

To convert Hjri date to Gregorian date, please use the below link: 

http://www.islamicfinder.org/Hcal/index.php 

To convert Persian date to Gregorian date, please use the below link:  

http://www.viewiran.com/calendar-converter.php 

Courtesy: Arabic Translation Centre (ATC)
www.arabictranslationcentre.com