Welcome to PSS Distributors UPS Calculator

Get a clear understanding of what size UPS you will need to keep everything running smoothly and protect your equipment when power is irregular.

How to use? 

Simply enter the number of devices in each category and the runtime you need and the calculator will automatically work out the total power needing protection. When you hit submit, the calculator will suggest a tower and / or rack option which best matches your criteria.


  1. Using your mouse (on a computer) or finger (touchscreen) to slide the slider to select the correct number of devices per section. (Alternative: You can manually enter the number or use the “+” and “–” icons to fine-tune your entry.) 
  2. Once you have selected all your equipment needing protection, please select the runtime requirement in minutes and/or hours. 
  3. Once all parameters have been selected, simply press the Submit button to see your results. 
  4. Either a tower and/or rack option will be presented that best matches your requirements. 
  5. From the results screen, you can make an enquiry, read more about the product, or come back to the UPS calculator to adjust your input data.