CS 182.52 Sending Files by Web:
Disk Backup & Online Files

Copyright © Eric Skagerberg   (All rights reserved.  This material may not be reproduced in printed or electronic format without the express permission of the author.)
Associate Instructor, Computer Studies Department
Santa Rosa Junior College, California
  Last updated on 11 February, 2025 .

Storage Capacities:  The Numbers

Term

Bytes

One

Factor
Kilobyte (KB) 1,000 Thousand 103
Megabyte (MB) 1,000,000 Million 106
Gigabyte (GB) 1,000,000,000 Billion 109
Terabyte (TB) 1,000,000,000,000 Trillion 1012
Petabyte (PB) 1,000,000,000,000,000 Quadrillion 1015
Exabyte (EB) 1,000,000,000,000,000,000 Quintillion 1018
Zettabyte (ZB) 1,000,000,000,000,000,000,000 Sextillion 1021
Yottabyte (YB) 1,000,000,000,000,000,000,000,000 Septillion 1024
Ronnaabyte (RB) 1,000,000,000,000,000,000,000,000,000 Octillion 1027
Quettabyte (QB) 1,000,000,000,000,000,000,000,000,000,000 Nonillion 1030

Adapted and revised from a table by Harry Phillips; used with permission.

For a full list of prefixes: 

New Binary Prefixes from NIST