Converting Between Degrees and Radians in C#

Updated on August 7, 2015     Kisan Patel

To convert a value in degrees to radians, multiply it by math.PI/180:

public static double ConvertDegreesToRadians (double degrees)
{
      return ((Math.PI / 180) * degrees);
}

To convert a value in radians to degrees, multiply it by 180/mathPI:

public static double ConvertRadiansToDegrees(double radians)
{
      return ((180 / Math.PI) * radians);
}

Example

class Program
{
    static void Main(string[] args)
    {
        double degrees = 180;
        double radians = 3.14;
        Console.WriteLine("Degrees To Radians = " + ConvertDegreesToRadians(degrees));
        Console.WriteLine("Radians To Degrees = " + ConvertRadiansToDegrees(radians));
        Console.ReadKey();
    }

    public static double ConvertDegreesToRadians(double degrees)
    {
        return ((Math.PI / 180) * degrees);
    }

    public static double ConvertRadiansToDegrees(double radians)
    {
        return ((180 / Math.PI) * radians);
    }
}

Output of the above program…