Convert.ToDouble Method (Int32)


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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);

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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