C# BitConverter ToDouble

Description

BitConverter ToDouble returns a double-precision floating point number converted from eight bytes at a specified position in a byte array.

Syntax

BitConverter.ToDouble has the following syntax.

public static double ToDouble(
  byte[] value,
  int startIndex
)

Parameters

BitConverter.ToDouble has the following parameters.

• value - An array of bytes.
• startIndex - The starting position within value.

Returns

BitConverter.ToDouble method returns A double precision floating point number formed by eight bytes beginning at startIndex.

Example

The following code example converts elements of Byte arrays to Double values with the ToDouble method.

/*w  w  w.jav  a2  s  .c om*/
using System;

class BytesToDoubleDemo
{
    public static void Main()
    {
        byte[ ] bytes = {
            202, 192, 243,  63,  82, 211, 187, 188, 232, 126, 
             61, 126, 255, 255, 255, 255, 255, 255, 239, 255, 
            255, 255, 255, 255, 255, 239, 127,   1,   0,   0, 
              0, 240, 127 };

        double value = BitConverter.ToDouble( bytes, 2 );

        Console.WriteLine(value );
        
    }
}

The code above generates the following result.