Get image size in Kb using c#

Get image size in Kb in asp.net using c#:
                                                            Use FileInfo and the Length property to measure file size.  Here is the code for  get the file size in your C# program easily.
The blow sample contain code for get image size in KB and MB.

  FileInfo fileInfo = new FileInfo(Server.MapPath("~/Images/Header.jpg"));
            double fileSizeKB = fileInfo.Length / 1024;
            double fileSizeMB = fileInfo.Length / (1024 * 1024);