IMPACT Online Storage Estimator

This tool will estimate the storage required for the images and OCR output files made within your digitisation workflow.
Please fill out all relevant fields and then click the 'Estimate' button.

Please leave any questions or feedback with the IMPACT helpdesk at: If you would like to use a version of the IMPACT Storage Estimator with a wider range of functions, tutorial and background notes, please use our off-line version, which can be found on the IMPACT website at

Although great care was taken in producing this storage estimator, you use it at your own risk. IMPACT can not guarantee the absence of errors or omissions in this tool. If you find any mistakes, please contact the authors at

Master Files

Expected size of the Master Files in MB:

Derivative Files for Web

Expected size of the Derivate Files in MB:

OCR Result Files

Expected size of the OCR Files in MB:

Expected size of your collection

* Divide the output in half, if compression is used.

Project related information

This tool is released under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License: Creative Commons License

Provided for the IMPACT Project by the Munich DigitiZation Center (MDZ) at the Bavarian State Library,

\A9 Munich DigitiZation Center 2011