Question

I have an array of three bytes, I want to convert array into double using c#. Kindly guide me.

Answer 1

Well a double is an array of 8 bytes, so with 3 bytes you won’t have all the possible values.

To do what you want:

var myBytes[] = {0,0,0,0,0,1,1,2}; //assume you pad your array with enough zeros to make it 8 bytes.
var myDouble = BitConverter.ToDouble(myBytes,0);