Conduit Fill Calculator
Calculate conduit fill percentage based on conduit area, wire size, and the number of wires.
Conduit Information
0Total Wire Area
0%Conduit Fill
0Remaining Area
How to Use the Conduit Fill Calculator
Enter the internal area of the conduit, the area of one wire, and the number of wires. The calculator estimates the percentage of the conduit occupied by the wires.
Conduit Fill Formula
Conduit Fill = Total Wire Area ÷ Conduit Area × 100
Actual allowable conduit fill depends on the number and type of conductors and applicable electrical codes. Always verify the result against the requirements that apply to your installation.