# Conduit Fill Calculator

> NEC Chapter 9 raceway fill percentage and minimum conduit size.

Canonical page: [https://chrome-stats.com/d/com.k4y.conduitfill](https://chrome-stats.com/d/com.k4y.conduitfill)

## Overview

- **ID:** `com.k4y.conduitfill`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** k4y apps
- **Category:** TOOLS
- **Downloads:** 3
- **Version:** 1.0.0
- **Last updated:** 2026-08-16
- **First published:** 2026-08-16
- **Publisher country:** US
- **Size:** 14 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.k4y.conduitfill)
- **Website:** [https://k4yapp.com](https://k4yapp.com/)
- **Privacy policy:** [https://k4yapp.com/privacy/](https://k4yapp.com/privacy/)

## Description

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.<br><br>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.<br><br>FILL<br>- Pick a raceway type and trade size, and toggle the Note 4 nipple exception for a raceway 24 inches or less<br>- Build a mixed conductor bundle: add rows of insulation type, conductor size, and quantity<br>- See fill percentage against the applicable limit as you edit, with a gauge showing where you sit against the 53%/31%/40%/60% bands<br>- See total conductor area, allowed area, and conduit total area<br>- Save the current bundle and raceway as a pull; the first saved pull needs no ad<br><br>CONDUIT<br>- 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<br>- See the next trade size up as headroom for a run that may be pulled again<br>- Review the saved bundle summary with one tap back to editing it<br>- View your saved pulls; saving needs no ad, and the list unlocks with a short rewarded ad<br><br>PULLS<br>- Save a named raceway-and-bundle combination for repeat use<br>- Reload a saved bundle into the Fill screen in one tap<br>- Delete any saved bundle<br>- The first saved bundle needs no ad; saving more unlocks with a short rewarded ad<br><br>WHAT IT CALCULATES<br>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.<br><br>BUILT FOR THE JOB SITE<br>- Fast entry with minimal taps<br>- Works offline on site<br>- No account required<br>- Your saved pulls and bundles stay on your device<br><br>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.

## Rankings

- #3,020,730 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `com.k4y.conduitfill.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Similar extensions and apps

- [Conduit Fill NEC Chapter 9](https://chrome-stats.com/d/com.electools.conduit_fill_calculator) — 251 users, 3.50 / 5
- [Prysmian Group Conduit Fill](https://chrome-stats.com/d/com.generalcable.conduitfill) — 39,168 users, 2.67 / 5
- [Conduit Fill](https://chrome-stats.com/d/areopagitics.conduitfill) — 16 users
- [Conduit Filler](https://chrome-stats.com/d/com.archalog.conduitfiller) — 4,330 users, 3.67 / 5
- [Solar Conduit Fill NEC Ch.9](https://chrome-stats.com/d/com.solartools.conduitfill) — 4 users
- [Southwire® Conduit Fill Calc](https://chrome-stats.com/d/com.conduit) — 188,825 users, 3.93 / 5
- [Box Fill Calculator](https://chrome-stats.com/d/com.sanca.boxfill) — 10 users
- [ConduitLab: NEC Calculator](https://chrome-stats.com/d/com.teleiosai.conduitlab) — 105 users
- [Voltkit: NEC Conduit Fill Calc](https://chrome-stats.com/d/com.chora.Voltkit) — 15 users
- [Box Fill NEC 314 Calculator](https://chrome-stats.com/d/com.electools.box_fill_calculator) — 453 users
- [Cable Calculator](https://chrome-stats.com/d/com.loyaltyforge.cable_calculator)
- [NEC 2026 Electrical Calculator](https://chrome-stats.com/d/com.sparkiq.app) — 2 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/com.k4y.conduitfill)