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Convert.ToInt16 Method (Double)

Converts the value of the specified double-precision floating-point number to an equivalent 16-bit signed integer.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public static short ToInt16(
	double value


Type: System.Double

The double-precision floating-point number to convert.

Return Value

Type: System.Int16
value, rounded to the nearest 16-bit signed integer. If value is halfway between two whole numbers, the even number is returned; that is, 4.5 is converted to 4, and 5.5 is converted to 6.


value is greater than Int16.MaxValue or less than Int16.MinValue.

The following example converts each element in an array of Double values to a 16-bit signed integer. The example illustrates that any fractional part of a Double value is rounded before performing the conversion.

double[] values = { Double.MinValue, -1.38e10, -1023.299, -12.98,
                    0, 9.113e-16, 103.919, 17834.191, Double.MaxValue };
short result;

foreach (double value in values)
   try {
      result = Convert.ToInt16(value);
      Console.WriteLine("Converted {0} to {1}.", value, result);
   catch (OverflowException)
      Console.WriteLine("{0} is outside the range of the Int16 type.", value);
//       -1.79769313486232E+308 is outside the range of the Int16 type. 
//       -13800000000 is outside the range of the Int16 type. 
//       Converted -1023.299 to -1023. 
//       Converted -12.98 to -13. 
//       Converted 0 to 0. 
//       Converted 9.113E-16 to 0. 
//       Converted 103.919 to 104. 
//       Converted 17834.191 to 17834. 
//       1.79769313486232E+308 is outside the range of the Int16 type.

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