Pages in a MB/GB e-Discovery Calculator
This free online calculator inputs Megabytes or Gigabytes of various file types
(e.g., Outlook email PSTs, Word, Excel and other native files, PDFs, TIFFs, etc.)
estimates
equivalent pages and boxes. This calculator is useful for calculating e-Discovery
document review costs and preparing litigation budgets.
How to Use the Pages in a MB/GB Calculator
General.
This calculator allows members of litigation teams to more accurately estimate how many page
equivalents are contained in electronic stored information (ESI) for litigation
e-discovery files. Accurate estimates are important for legal budgeting purposes, as review costs for
relevance, privilege and trade secrets are usually driven by the quantity of page
equivalents.
Assumes Uncompressed Files.
This calculator assumes that the files to be analyzed are
uncompressed. Files can be be compressed as ZIP, RAR or other
formats. To use this calculator you should calculate based on
uncompressed file size, as file compression can greatly affect the
calculation. There is also a great of variation in how
efficiently files compress, with files such as text, emails and
spreadsheets generally compressing to the greatest degree. Compressed
files can add a lot of variabiltiy to email files in particular, as they may
include compressed files (usually as zip archives) that can greatly reduce the
actual pages per MB as compared with text email.
MB Column.
Input here the number of megabytes (MB) of each file type you wish
to calculate.
GB Column.
The number of megabytes from the MB column are automatically
converted to gigabytes (GB).
Pages/MB Column.
This column refers to the average number of pages per MB for each
specific file type. Initial values are included for your convenience, but you can and should
adjust these to reflect the specific values of your sample.
File Type Column.
Describes the file type referred to in the row.
-
Email.
Includes Outlook, Outlook Express, Lotus Notes, and other email files.
Extensions include PST, OST, DBX, MSG, NFS.
-
Word Processing.
Includes Microsoft Word, Corel WordPerfect, Open Office and similar file
types.
Extensions include DOC, DOCX , WPD, RTF, ODT.
-
Spreadsheets.
Includes Excel, Lotus 1-2-3, Quattro Pro, Open Office and other spreadsheet
application.
Extensions include XLS, XLSX, WK1, WK2, WK3, WK4, WR1, 123, WQ1, WQ2, WKQ, ODS.
-
Presentations. Include
PPT, PPTX, ODP.
-
PDFs.
Refers to Adobe Acrobat files.
The extension is usually PDF.
-
Scanned Images.
Refers to other image based files made by various applications.
Extensions include BMP, DCX, TIF, TIFF, JPG, JPEG, RAW, ODG.
-
Text Files.
Refers to other text based files made by various applications. Extensions
include TXT, CVS.
-
Other File Types.
This refers to other file types you might have in a sample that have not
been identified above.
Estimated Pages Column.
This column calculates the total estimated pages for the
specific file type in the row.
Estimated Boxes Column.
The column to the right calculates the total estimated box
equivalents for the
specific file type in the row assuming 2,500 pages per box.
How to Sample Data to Get your Pages/MB for Specific File
Types
The pages per GB calculator depends on specific inputs of Pages per
MB for each file types. To obtain these inputs you should randomly select a number of files for
each file type to sample. Add the total MB for your sample files and
then open each sample file to determine the
number of pages in each file.
Then total the MB and pages for your sample and divide to obtain your sample Pages/MB for the calculator input.
The number of files your should sample will vary depending upon the
size of the sample and degree of statistical accuracy you wish to obtain with the estimate.
Questions or Comments
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