A kilobyte is 1024 bytes and is abbreviated as KB.
A megabyte is 1024 KB (about a million bytes) and is abbreviated as MB.
A gigabyte is 1024 MB (about a billion bytes) and is abbreviated as GB.
The following terms are equivalent:
1 GB = 1,024 MB = 1,048,576 KB = 1,073,741,824 bytes