Library Digital Content Creation

University of Illinois Library

1408 W. Gregory Drive
Urbana, IL, 61801


Use the Image Quality Calculator

Image Dimensions





The formulae for the Image Quality Calculator are intended for text and manuscript scanning. The IQC can be used for other types of materials, but we do not recommend this practice.


You must supply the dimensions of the original document or object in order to calculate file size, resolution, and quality. If you plan to use a flatbed scanner, it is also important to measure the document to be certain that it will fit on the scanning bed. Most commercial flatbed scanners range in dimensions from 8.5" x 14" to 12" x 17".

Enter width and height information in inches using decimal values and/or fractions of halves, fourths, eighths and sixteenths only. For centimeters, use integers with up to four digits to the right of the decimal point.

Digital Services and Development Unit
Grainger Engineering Library

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