# Conduit Fill Tracker > NEC code compliant conduit fill calculator for electrical installations. (iPhone/iPad app by Summit Electric Supply.) - Source: https://appshunter.io/ios/app/conduit-fill-tracker/id591997818 (this page in markdown: same URL + `.md`) - Developer: [Summit Electric Supply](https://appshunter.io/developer/512348779) - Category: Utilities, Reference - Price: Free - Rating: 5.00/5 from 10 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 6.0 · 3 MB - Languages: American English - Released: 2013-01-12 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/conduit-fill-tracker/id591997818/reviews.md ## What is Conduit Fill Tracker? Set to 2011 NEC code, Conduit Fill Tracker is a conduit fill calculator that finds allowable fill rates and keeps track of any combination of conductors as you switch between raceway types and sizes. Rather than reading lengthy conduit fill charts, use the easy-to-read graph to see current and remaining fill percentages and get alerts when you go over the allowable fill rate. Easily determine the maximum number of conductors you can use in your raceway, conduit or tubing. You can calculate conduit fill using varying sizes and types of conductors, including bare wire and compact conductors. Adjust the sizes of your conduit or tubing on the fly and add or remove conductors to see real-time calculated updates. Find where you are impacted most with detailed area consumption for each group of conductors. As you add and remove conductors, the app automatically calculates the permitted fill rates from the 2011 NEC, keeping you within code. Allowable fill rates adjust automatically for differences in conductor count and for conduit or tubing lengths of 24” or less. Features: • Quickly adjust your conduit or tubing type or size • Add conductors of varying types and sizes to calculate fill rates • See real-time updates to allowable fill as you make selections • Adjusts allowable fill rates for conduit or tubing lengths 24" or less • Includes compact and bare wire conductors • Improved controls with tablet layout How to Use: 1. Move the selection wheels to choose the quantity, type, and size of conductor 2. Tap the "Add to Conduit / Tubing" button for each conductor you want to track 3. Select the type and size of conduit or tubing 4. Check the graph for fill rates to determine any remaining space or overfill 5. Change the size or type of your conduit or tubing, or update conductor sizes, types, or quantities, if needed Tips: • Use the minus icon to remove 1 conductor at a time from a group • Tap and hold minus icon to remove any group of conductors • Choose the “Clear All” button to empty the entire conduit or tubing • Select conduit or tubing and conductors first to view available sizes; wheels and menus update automatically ## Key features - 2011 NEC code compliance - Calculates allowable fill rates - Real-time fill percentage graph - Alerts for exceeding fill limits - Supports various conductor types and sizes - Adjustable raceway types and sizes ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/conduit-fill-tracker/id591997818/reviews.md ### 5/5 — This is a really good app for conduit fill *2024-01-11* Electrical contractor here and I’ve been using this app for probably 10years. Awesome and super super easy to use. ### 5/5 — Awesome App!!!! Finally an app that does exactly what it says! *2020-10-07* Good day to all my fellow electricians out there!! This is the best app for conduit fill out there, hands down!!! I’ve checked the app against my own calculations several times and this app is spot on. Saves time in the field and as we know time is money!!! Thanks summit electrical supply!!! Keep up the good work ### 5/5 — Love this app *2018-04-04* I am a GF for a large electrical contractor and I prefer this app for calculating fill to any other I’ve used. Its accurate and easy to use. I use it regularly especially when detailing power prints. ### 5/5 — Useful app *2017-03-12* Love this handy app for conduit fill calculations. If it included conductor de-rating calculations, it would be the only app that I need. ### 5/5 — Awesome *2015-10-21* Works great....I-Phone 6 with IOS 9 ### 5/5 — Great app - very useful. *2015-10-14* Except it broke under IOS 9. It won't let me select different types or sizes on conduit. I hope they fix it! Previously, it was very easy to use. ### 5/5 — Easy to use! Works!!! *2013-12-19* This has helped me so many times in the field, unstead if grabbing my book. Works great, functions flawlessly!!!! ### 5/5 — Nice, actually helpful. *2013-10-24* This app actually calculates conduit fill with varying size and types of wire. Most others seem to just give a chart that assumes all the wires in a conduit are the same. Also, I had a problem installing this app. Turns out it was a cockpit problem on my part. I had restrictions turned on. Anyway, I made a comment on the Summit website and they got back to me first thing the next working day. Great support! ## Frequently asked questions about Conduit Fill Tracker ### What is the NEC code version used by Conduit Fill Tracker? Conduit Fill Tracker uses the 2011 National Electrical Code (NEC) for its calculations. This ensures compliance with specific electrical installation standards from that year. ### Can Conduit Fill Tracker handle different types of conductors? Yes, Conduit Fill Tracker supports calculating fill rates for various conductor types, including compact and bare wire conductors. You can adjust their sizes and quantities to see real-time updates. ### How does Conduit Fill Tracker alert users about overfill? The app features an easy-to-read graph that displays current and remaining fill percentages. It provides alerts when you exceed the allowable fill rate, helping you stay within code. ### Is Conduit Fill Tracker available on Android devices? Based on the provided data, Conduit Fill Tracker is supported on iPhone, iPad, and iPod. Information regarding Android compatibility is not available. ### How often is Conduit Fill Tracker updated? The app was last updated on October 20, 2015, with version 1.1.0. This indicates a less frequent update schedule for the application. ### What is the age rating for Conduit Fill Tracker? Conduit Fill Tracker has an age rating of 4+, making it suitable for a wide range of users. This rating suggests no mature content is present in the application. ### Does Conduit Fill Tracker have ads? No, Conduit Fill Tracker does not contain advertisements. The app is free to use and does not display any promotional content. ### What are the benefits of using Conduit Fill Tracker over charts? Instead of consulting lengthy conduit fill charts, Conduit Fill Tracker offers a dynamic and visual approach. It provides real-time calculations and alerts, making it easier to manage conductor fill. ## Version history (last 2 releases) ### 1.1.0 — 2015-10-20 This app has been updated by Apple to display the Apple Watch app icon. Resolves issues with iOS 9. Added support for iPad Multitasking. ### 1.0.2 — 2013-01-11 No release notes. ## More apps by Summit Electric Supply - [NEMA Configuration Guide](https://appshunter.io/ios/app/nema-configuration-guide/id512348776) - [Summit Electric Supply](https://appshunter.io/ios/app/summit-electric-supply/id799754958) - [Voltage Drop Calculator Summit](https://appshunter.io/ios/app/voltage-drop-calculator-summit/id1102494411) All apps by Summit Electric Supply: https://appshunter.io/developer/512348779 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*