Conduit Fill Table This conduit fill chart is used to determine how many wires can be safely put into non-PVC conduit tubing or pipe.

CONDUIT FILL TABLES – NEC TABLE C CONDUCTOR SIZE – AWG / kcmil – THHN / THWN SIZE 14 12 10 8 6

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.

NEC Chapter 9 Table 4: Dimensions and Percent Area of Conduit and Tubing: EMT (Electrical Metallic Tubing)

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.

Aug 2, 2025 · Discover NEC-compliant conduit fill charts for EMT, IMC, Rigid, and Flexible Metal Conduits. Downloadable tables, size-by-size breakdowns, and manufacturer-supplied …

Find the right conduit size with our Conduit Fill Table. Easily calculate NEC-compliant fill limits for safe, efficient wiring. Perfect for electricians and contractors.

Apr 20, 2025 · Calculate the correct conduit size for electrical cables quickly and accurately using NEC guidelines with our easy-to-use conduit size calculator.

Oct 23, 2023 · Comprehensive conduit capacity chart - Conduit Fill chart, detailing the values for various wire sizes across different conduit sizes.

Our online tool helps electricians, engineers and contractors calculate the right size conduit, fill percentages and jam probability per NEC guidelines.