Resources

Data Volume Estimates and Conversions

Storage Estimates

Media Electronic Storage Paper Storage
CD 650 MB 50,000 Pages
DVD 4.7 GB 350,000 Pages
Digital Linear Tape 40/80 GB 3/6 Million Pages
Super Digital Linear Tape 60/120 GB 4/9 Million Pages

Page Estimates

Data Unit Page Count
1 MB 75
1 GB 75,000
Email 1.5 (100,099 pages per GB)
Word Document 8 (64.782 pages per GB)
Spreadsheet 50 (165.791 pages per GB)
Power Point Presentation 14 (17,552 pages per GB)

Email File Estimates

File Size Email Quantity
100 MB .PST File 900 Emails and 300 Attachments
400 MB .PST File 3500 Emails and 1200 Attachments
600 MB .PST File 5500 Emails and 1600 Attachments
1 GB .NSF File 9000 Emails and 3000 Attachments
1.5 .NSF File 14,500 Emails and 4500 Attachments

Bits and Bytes Sizes

8 bits are equal to 1 byte (one or two words)
1,024 KB are equal to 1 MB
1,024 MB are equal to 1 GB
1,024 GB are equal to 1 TB
1,024 TB are equal to 1 PB
1,024 PB are equal to 1 EB

Terms and Definitions

Abbreviation Full Name Definition
KB Kilobyte
MB Megabyte
GB Gigabyte (One Truck Full of Paper)
TB Terabyte (Paper Produced from 50,000 Trees)
PB Petabyte (250 Billion Pages of Text)
EB Exabyte (1,000,000,000,000,000,000 bytes)
PST (File Extension) Personal Storage Table Microsoft Storage File
NSF (File Extension) Notes Storage Format Lotus Notes Email Storage File