Conduit Fill Tables

Maximum conductor counts per NEC 2023 Annex C. Select a conduit type for the full table, or use the per-gauge pages for specific wire sizes.

EMT
EMT (Electrical Metallic Tubing). NEC Article 358.
RMC
RMC (Rigid Metal Conduit). NEC Article 344.
IMC
IMC (Intermediate Metal Conduit). NEC Article 342.
PVC Sch 40
PVC Schedule 40. NEC Article 352.
PVC Sch 80
PVC Schedule 80. NEC Article 352.

By wire size

14 AWG12 AWG10 AWG8 AWG6 AWG4 AWG3 AWG2 AWG1 AWG1/0 AWG2/0 AWG3/0 AWG4/0 AWG
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NEC 2023 references verified April 2026