# Voltage Drop Calculator Summit — Summit Electric Supply > Electrical voltage drop calculator based on 2014 NEC standards. (iPhone/iPad app by Summit Electric Supply.) - Source: https://appshunter.io/ios/app/voltage-drop-calculator-summit/id1102494411 (this page in markdown: same URL + `.md`) - Developer: [Summit Electric Supply](https://appshunter.io/developer/512348779) - Category: Utilities, Productivity - Price: Free - Rating: 1.70/5 from 7 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 5 MB - Languages: American English - Released: 2016-04-21 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/voltage-drop-calculator-summit/id1102494411/reviews.md ## What is Voltage Drop Calculator Summit? Summit's Voltage Drop Calculator allows you to quickly calculate and share voltage drop for a selected conductor size and type based on the 2014 NEC. This simple and easy-to-use calculator delivers professional results for any size job or project. Simply select your conductor then enter your voltage, amperage, phase, distance, and number of runs to determine the new voltage and percentage dropped. You’ll get instant results for each calculation that includes the formula used as well as detailed technical information. A visual graph also shows the drop in voltage over your entire distance and displays where allowable percentages are so you can make quick adjustments. At the press of a button, you can view and share technical information for every calculation. ## Key features - Calculate voltage drop - Share calculation results - Supports 2014 NEC standards - Visual voltage drop graph - Detailed technical information - Instant results ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/voltage-drop-calculator-summit/id1102494411/reviews.md ### 1/5 — Thank you but *2017-11-17* I think there is an error.the voltage drop must decrease when we increased cable size but in your app when I choose a biggest size the voltage drop percent increase ### 1/5 — Doesn't work on iOS 11 *2017-10-12, version 1.0.84* App is a junk website pretending to be an app, and outright refuses to load on iOS 11. Apple should stop allowing these junk pretend apps in the AppStore. ### 1/5 — Doesn't work on my iPad iOS 10.3.2 *2017-08-06, version 1.0.84* App is black nothing appear. ### 1/5 — This is an App? *2017-01-09* Doesn't open, just hangs. ### 1/5 — Won't open *2016-06-02* I can't get the app to open ## Frequently asked questions about Voltage Drop Calculator Summit ### What is the Voltage Drop Calculator Summit based on? The Voltage Drop Calculator Summit is based on the 2014 NEC (National Electrical Code) standards. This ensures calculations are compliant with current industry regulations for electrical work. ### What information do I need to input for a calculation? To perform a calculation, you need to select the conductor size and type, then enter the voltage, amperage, phase, distance, and number of runs. The app will then determine the voltage and percentage dropped. ### Does Voltage Drop Calculator Summit have ads? No, Voltage Drop Calculator Summit is ad-free. You can use the application without any interruptions from advertisements. ### What devices does Voltage Drop Calculator Summit support? Voltage Drop Calculator Summit is available for iPhone, iPad, and iPod. It is designed for Apple's mobile operating systems. ### How often is Voltage Drop Calculator Summit updated? The latest version of Voltage Drop Calculator Summit is 1.0.87, which was last updated on February 6, 2018. Future updates may be released to improve functionality or incorporate newer code standards. ### What is the age rating for Voltage Drop Calculator Summit? Voltage Drop Calculator Summit has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions. ### Can I share my calculations from Voltage Drop Calculator Summit? Yes, you can view and share technical information for every calculation at the press of a button. This allows for easy communication of results with colleagues or clients. ### What does the visual graph in Voltage Drop Calculator Summit show? The visual graph in Voltage Drop Calculator Summit displays the drop in voltage over your entire distance. It also shows where allowable percentages are, helping you make quick adjustments. ## Version history (last 2 releases) ### 1.0.87 — 2018-02-06 This app has been updated by Apple to display the Apple Watch app icon. Version 1.0.87 of the Voltage Drop Calculator has an updated user interface, new disclaimer information based on the 2017 NEC code book as well as additional calculations for all of the listed wire specs. Additionally, if an incorrect value is selected, there is a prompt to notify users that the entered values are not within accepted code. This is an improvement in accuracy for users. ### 1.0.84 — 2016-04-21 This update is signed with Apple’s latest signing certificate. No new features are included. ## Apps similar to Voltage Drop Calculator Summit | App | Rating | Price | Category | | --- | --- | --- | --- | | [Electrical Calculator lite](https://appshunter.io/ios/app/electrical-calculator-lite/id922903696) | 4.6 (565) | Free | Utilities | | [AWG Calculator: Wire Size](https://appshunter.io/ios/app/awg-calculator-wire-size/id1607173204) | 4.6 (67) | Free | Utilities | | [Voltage Drop Calculator.](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064) | 4.6 (411) | Free | Utilities | | [Wire Gauge Calculator.](https://appshunter.io/ios/app/wire-gauge-calculator/id6743387075) | 5.0 (1) | Free | Utilities | | [Electrical calculation](https://appshunter.io/ios/app/electrical-calculation/id6741321759) | — | Free | Utilities | | [ElectriCalc Pro](https://appshunter.io/ios/app/electricalc-pro/id569677304) | 4.9 (256) | Free | Utilities | ## More apps by Summit Electric Supply - [NEMA Configuration Guide](https://appshunter.io/ios/app/nema-configuration-guide/id512348776) - [Conduit Fill Tracker](https://appshunter.io/ios/app/conduit-fill-tracker/id591997818) - [Summit Electric Supply](https://appshunter.io/ios/app/summit-electric-supply/id799754958) 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.*