
Cable Fill Calculator & Table
Calculate recommended and maximum cable fill for CPI cable management and pathway products — available as a downloadable table or mobile calculator.
What Is Cable Fill?
Cable fill is the percentage of a cable pathway or cable management product's usable cross-sectional area occupied by cables — used to determine proper capacity and maintain airflow.
The Chatsworth Products Cable Fill Table and Calculator let you determine recommended and maximum fill values for Chatsworth Products cable management and pathway products.
Each entry includes the usable area for that product, so you can calculate fill values for cable types not listed directly.
Download the table in either format:
*The Excel version automatically estimates cable fill values from your cable specification. Cable management and cable pathway products are listed on separate tabs, since their fill ratios differ — enter your cable size and fill ratio in the yellow highlighted fields to get results up to the cable manager's limit.

Cable Fill Calculator also available on CPI's Mobile App Suite
The CPI Mobile App Suite includes a Cable Fill Calculator covering vertical and horizontal cable managers, cable management rings, cable runway, and more. Each product includes a star rating to help you identify the best fit for your application. Once you've calculated your results, you can email them to yourself, a customer, CPI Technical Support, or a distributor for ordering or verification.
Download the CPI Mobile App Suite on iTunes or Google Play.
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