Conduit Fill Calculator

Name: Conduit Fill Calculator
Author: k4y apps

Android app by k4y apps. Tools · k4y apps

Store rating: Unknown
Store rating count: Unknown
Download price: Free to download
In-app purchases: Not listed in captured metadata
Version: 1.0.0
Listing last refreshed: 2026-09-18

Store description excerpt

Conduit Fill Calculator checks whether a conductor bundle fits a raceway, or finds the smallest trade size that will hold it, against NEC Chapter 9 tables. Use this conduit fill calculator to check fill percentage for EMT, IMC, RMC, or PVC raceway, or to find the minimum trade size for a bundle of conductors, using NEC Chapter 9 Table 1, Table 4, and Table 5 data. Every area figure applied to your bundle is shown on screen so you can check the math. FILL - Pick a raceway type and trade size, and toggle the Note 4 nipple exception for a raceway 24 inches or less - Build a mixed conductor bundle: add rows of insulation type, conductor size, and quantity - See fill percentage against the applicable limit as you edit, with a gauge showing where you sit against the 53%/31%/40%/60% bands - See total conductor area, allowed area, and conduit total area - Save the current bundle and raceway as a pull; the first saved pull needs no ad CONDUIT - Enter a conductor bundle and get the smallest verified trade size of the selected raceway type that stays within the NEC Chapter 9, Table 1 fill limit - See the next trade size up as headroom for a run that may be pulled again - Review the saved bundle summary with one tap back to editing it - View your saved pulls; saving needs no ad, and the list unlocks with a short rewarded ad PULLS - Save a named raceway-and-bundle combination for repeat use - Reload a saved bundle into the Fill screen in one tap - Delete any saved bundle - The first saved bundle needs no ad; saving more unlocks with a short rewarded ad WHAT IT CALCULATES This app implements NEC Chapter 9 Table 1 fill-limit percentages (which depend on conductor count, not on how full the raceway looks), Table 4 conduit interior areas for EMT, IMC, RMC, and PVC Schedule 40/80, and Table 5 conductor areas for THHN/THWN-2, XHHW-2, and TW insulation. It is a calculation aid, not a substitute for the authority having jurisdiction or the code edition actually adopted for an installation, which governs. BUILT FOR THE JOB SITE - Fast entry with minimal taps - Works offline on site - No account required - Your saved pulls and bundles stay on your device This app is ad-supported. Fill and sizing calculations are always available; saving beyond the first pull or bundle unlocks with a short rewarded ad.

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