EMT Conduit Fill Chart

EMT trade-size areas and the 40 percent fill column used for multi-conductor pulls.

Source: Chapter 9 Table 4
Edition: 2023
Updated: 2026-07-27
Scope: United States

Lookup Table

How much area is available in EMT conduit?

EMT trade size	Total area	40% area
1/2 in	0.304 sq in	0.122 sq in
3/4 in	0.533 sq in	0.213 sq in
1 in	0.864 sq in	0.346 sq in
1-1/4 in	1.496 sq in	0.598 sq in
1-1/2 in	2.036 sq in	0.814 sq in
2 in	3.356 sq in	1.342 sq in

EMT Conduit Fill Chart. Derived as a task-focused reference view; verify marginal work against the source and the AHJ edition.

Calculated against the NEC 2023 edition using Chapter 9 Table 4, Chapter 9 Table 1. Confirm the edition adopted by your AHJ, which may differ and may carry local amendments.

Not covered by this tool

Local amendments and equipment markings can be stricter than this reference view.
Marginal values should be checked directly against the adopted edition.
This page is a routing aid and does not replace the owning calculator for project-specific inputs.

Data last verified 2026-07-27