shahabfar 

Persia.Net is a versatile class library designed to seamlessly convert dates between Persian, Gregorian, and Islamic (Lunar Hijri) calendars.

Class library to convert Persian, Gregorian, and Arabic (Hijri) dates to each other.

Converting Persian date to Gregorian and Islamic date and vice versa in Silverlight applications.

Univertall is a versatile and comprehensive unit conversion library for .NET Core. It provides an easy-to-use API for converting between various units of measurement, including volume, pressure, length, mass,... More information