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Convert.ToDouble Method (Int32)

Converts the value of the specified 32-bit signed integer to an equivalent double-precision floating-point number.

Namespace:  System
Assemblies:   System.Runtime.Extensions (in System.Runtime.Extensions.dll)
  mscorlib (in mscorlib.dll)

public static double ToDouble(
	int value


Type: System.Int32

The 32-bit signed integer to convert.

Return Value

Type: System.Double
A double-precision floating-point number that is equivalent to value.

The following example converts an Int32 value to a Double value.

		public void ConvertDoubleInt(double doubleVal) {
			int     intVal = 0;
			// Double to int conversion can overflow. 
			try {
				intVal = System.Convert.ToInt32(doubleVal);
				System.Console.WriteLine("{0} as an int is: {1}",
					doubleVal, intVal);
			catch (System.OverflowException) {
					"Overflow in double-to-int conversion.");

			// Int to double conversion cannot overflow.
			doubleVal = System.Convert.ToDouble(intVal);
			System.Console.WriteLine("{0} as a double is: {1}",
				intVal, doubleVal);

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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