Conduit Capacity Calculator

Click here to use the Conduit Capacity Chart or use our calculator below.

Working Type:    English (in)     Metric (mm)
Belden Part Number:  
(example 9269 or 8723)
 OR  Cable Diameter:   
(example .125 or 1.250)
Type of Conduit: 
What is the trade size of the conduit?

NOTE: The calculations within the Conduit Calculator are based upon National Electric Code (NEC) guidelines, however, the results between the two different calculation methods may vary due to rounding. The results are to be used as a general guideline and Belden cannot be held responsible for this information as it pertains to your installation. Proper conduit selection is the sole responsibility of the installer. Be sure to check local codes.