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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
Assembly:  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);

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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