killians45 said:Its because a difference in calculations. Manufacturers usually consider (probably for profit reasons and knowing the normal public doesn't know the difference) 1 KB to be equal to 1000 bytes. The ACTUAL size, in decimal, is 1 kilobyte is equal to 1024 bytes. Now increase the to GB (losing 24 bytes per kb adds up) and thats where the lost space is. I can do a chart, or just google it to explain it for you.
thats often the case too, but the filesystem inodes take a chunk of space too
just check capacity before and after formatting, fdisk will show true capacity when partitoning a drive or after its already been done