PACSnet Storage Calculator





Please note: The results from the table are for guidance only. The default image sizes given below are typical values. Contact the modality vendor for the actual values.

This storage calculator is an approximate value. You need to enter for each of the procedures listed below, the daily number of images and where appropriate their size in MB. Once completed you then need to press the calculate button to calculate the results and the total in MB for the day, week, month and year.

As can be seen in the table below, there are several default image sizes given, these can be used or can be changed if necessary.
The calculation used to determine image size is as follows: Image Width * Image Height * Number of bits/pixel (pixel depth)
So, for example, a typical CR chest image has the following: Image width: 1760 pixels Image height: 2140 pixels No. of bits/pixel: 16

The calculation is as follows: 1760 * 2140 * 16 = 60262400 bits.
Assuming 8 bits per byte: 60262400 / 8 = 7532800 bytes.
To change this into KB: 7532800 / 1024 = 7356.2KB.
To change this into MB: 7356.2 / 1024 = 7.2 MB per image - rounded up this gives us 8MB.

Procedure No of Images Image Size MB Result (MB)
Plain Film
Fluoroscopy
Ultrasound
CT
MR
Angiography
Nuclear Medicine
Mobiles
Theatre
Mammography
Dental

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Total in MB Week Total (MB) Month Total (MB) Year Total (TB)