As requested by many of our students, we have prepared a conduit fill calculator to help you determine the conduit size and fill % for your conduits.
Simply input your variables below, and our handy calculator will give you the conduit size and fill, based on the latest edition of the Canadian Electrical Code.
If you prefer to check the tables manually, they are available below the calculator.
Conduit Fill Calculator (CEC)
CEC Conduit Fill Tables
In the 2024 edition of the CEC, several tables have been added to help calculate conduit fills.
Table 6
In the 2024 CEC, table 6 has been greatly expanded and deals with the maximum number of conductors:
Tables 9
Table 9 deals with internal cross-sectional area of different types and sizes of conduit. Use it in conjunction with table 10, which is available below, to calculate conduit fill.
Table 10
