BitConverter.GetBytes Method (Single)


Returns the specified single-precision floating point value as an array of bytes.

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

public static byte[] GetBytes(
	float value


Type: System.Single

The number to convert.

Return Value

Type: System.Byte[]

An array of bytes with length 4.

The order of bytes in the array returned by the GetBytes method depends on whether the computer architecture is little-endian or big-endian.

The following code example converts the bit patterns of Single values to Byte arrays with the GetBytes method.

// Example of the BitConverter.GetBytes( float ) method.
using System;

class GetBytesSingleDemo
    const string formatter = "{0,16:E7}{1,20}";

    // Convert a float argument to a byte array and display it.
    public static void GetBytesSingle( float argument )
        byte[ ] byteArray = BitConverter.GetBytes( argument );
        Console.WriteLine( formatter, argument, 
            BitConverter.ToString( byteArray ) );

    public static void Main( )
            "This example of the BitConverter.GetBytes( float ) " +
            "\nmethod generates the following output.\n" );
        Console.WriteLine( formatter, "float", "byte array" );
        Console.WriteLine( formatter, "-----", "----------" );

        // Convert float values and display the results.
        GetBytesSingle( 0.0F );
        GetBytesSingle( 1.0F );
        GetBytesSingle( 15.0F );
        GetBytesSingle( 65535.0F );
        GetBytesSingle( 0.00390625F );
        GetBytesSingle( 0.00000000023283064365386962890625F );
        GetBytesSingle( 1.2345E-35F );
        GetBytesSingle( 1.2345671F );
        GetBytesSingle( 1.2345673F );
        GetBytesSingle( 1.2345677F );
        GetBytesSingle( 1.23456789E+35F );
        GetBytesSingle( float.MinValue );
        GetBytesSingle( float.MaxValue );
        GetBytesSingle( float.Epsilon );
        GetBytesSingle( float.NaN );
        GetBytesSingle( float.NegativeInfinity );
        GetBytesSingle( float.PositiveInfinity );

This example of the BitConverter.GetBytes( float )
method generates the following output.

           float          byte array
           -----          ----------
  0.0000000E+000         00-00-00-00
  1.0000000E+000         00-00-80-3F
  1.5000000E+001         00-00-70-41
  6.5535000E+004         00-FF-7F-47
  3.9062500E-003         00-00-80-3B
  2.3283064E-010         00-00-80-2F
  1.2345000E-035         49-46-83-05
  1.2345671E+000         4B-06-9E-3F
  1.2345673E+000         4D-06-9E-3F
  1.2345676E+000         50-06-9E-3F
  1.2345679E+035         1E-37-BE-79
 -3.4028235E+038         FF-FF-7F-FF
  3.4028235E+038         FF-FF-7F-7F
  1.4012985E-045         01-00-00-00
             NaN         00-00-C0-FF
       -Infinity         00-00-80-FF
        Infinity         00-00-80-7F

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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