This PVC conduit fill table is used to determine how many THWN or THHN wires can be safely put into PVC conduit tubing. Each row going across is a different size of PVC conduit …

The NEC sets standards for the percent of volume that can safely be put into conduit. The below chart is from Table 1 in Chapter 9 of the National Electric Code.

The app will calculate the conduit fill percentages and jam probability for multiple conductors per NEC® Guidelines. Simply enter the conduit type and size, then specify your conductors.

PVC Conduit Fill Chart Wire Conductor Size (THWN, THHN) 14 12 10 8 6 1Ú2 1/2 Inch Schedule 40 1/2 Inch Schedule 80 11

CONDUIT FILL TABLES – NEC TABLE C CONDUCTOR SIZE – AWG / kcmil – THHN / THWN SIZE 14 12 10 8

Discover the Electrical Pipe Fill Chart PVC with clear tables, NEC standards, and conduit sizing guidelines. Learn how to calculate fill capacity, choose the right PVC conduit, and ensure safe, …

Oct 27, 2025 · Master conduit fill calculations with our complete NEC guide including fill charts, wire capacity tables, and step-by-step examples. Learn proper conduit sizing for electrical …

Free PVC conduit fill calculator for Schedule 40 and Schedule 80. Calculate NEC-compliant fill percentages for PVC conduit installations instantly.

To perform an accurate NEC conduit fill calculation, you must combine data from Table 5 with the conduit dimensions from Chapter 9 Table 4 and the permitted fill percentages from Chapter 9 …

Aug 12, 2025 · When you’re planning or reviewing a raceway run, nothing beats a conduit fill chart. It turns code percentages into clear, ready-to-use numbers— no calculator required. …