# ElectriCalc Pro — Electrician NEC Calculator > Electrical code calculator for NEC compliance and complex electrical calculations. (iPhone/iPad app by Calculated Industries.) - Source: https://appshunter.io/ios/app/electricalc-pro/id569677304 (this page in markdown: same URL + `.md`) - Developer: [Calculated Industries](https://appshunter.io/developer/370406449) - Category: Utilities, Productivity - Price: Free with in-app purchases (on sale, was $29.99) - Rating: 4.90/5 from 354 App Store ratings · 32 written reviews indexed - Age rating: 12+ - Requires: iOS 14.0 · 29 MB - Languages: American English - Released: 2012-10-20 - Data updated: 2026-08-29 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/electricalc-pro/id569677304/reviews.md ## What is ElectriCalc Pro? FREE Try Before You Buy trial, your App Store account is not charged by Apple during the free trial. Electrical Contractors, Designers, Electricians, and Lighting Specialists solve tough electrical calculations in seconds and deliver those solutions in conformance with the latest NEC®. The ElectriCalc Pro electrical code calculator is compliant with 2023, 2020, 2017, 2014, 2011, 2008, 2005, 2002, 1999, and 1996 NEC®. The official US-based National Electrical Code® (NEC) ElectriCalc Pro from Calculated Industries for iOS is a full-featured emulation of our popular #5065/#5070 models. ----- Full Functionality of our Pro Handheld Calculator ----- • Experience the power of a professional calculator on your iPhone. • ElectriCalc Pro replicates all features & solutions of our top-rated handheld model. ----- Built-in Help & Tutorials ----- • Press and hold any key for clear definitions, examples, and usage guides. • A complete user manual is also available. ----- Complete Electrical Reference Tool ----- • Save time, trouble, and money with ElectriCalc Pro's comprehensive electrical reference data. • All the info you need for calculations and code compliance is built into one app. The ElectriCalc Pro is a complete electrical reference tool that will save time, trouble, and money. ElectriCalc Pro Solutions: • Wire Sizes • Voltage Drop • Conduit Sizing • Motor Full-Load Amps • Fuse and Breaker Sizes • Service and Equipment Grounding Conductor Sizes • Parallel Resistance • Ohm’s Law Calculations – enter any two values to solve for the third • Circular MILS wire sizes ElectriCalc Pro Calculations: • Work directly in and convert between Amps, Watts, Volts, Volt-Amps, kVA, kW, PF% and EFF%, and DC Resistance • Calculate wire sizes per NEC® 310-16 and 310-17; Copper or aluminum, 3Ø/1Ø, 60°C, 75°C, 90°C insulation ratings and 100% or 125% of ampacity. Can also adjust wire sizes for ambient temperatures other than 30◦ C and more than three wires in a raceway • Integrated voltage drop solutions. Find minimum VD wire size, maximum length for any given wire size, drop percentage, actual number and percentage of Volts dropped • Conduit sizing for 12 types of conduit. Plus, it gives fill percentages, cross-sectional areas, remaining areas, and more • Find Motor Full-Load Amps per current NEC®. Works in 1Ø and 3Ø with the newly expanded tables for 3Ø induction (to 500 hp), synchronous (to 200 hp), and DC motors per NEC® 430-247, 430- 248 and 430-250 • Calculates Fuse and Breaker Sizes per NEC® 430-52 • Parallel and derated wire sizing • Parallel Resistance • NEC Table number displays when performing Wire Size calculations • Sizes overload protection per NEC® 430-32 • Automatically finds NEMA starter sizes • Calculates service and equipment grounding conductor sizes per NEC®: 250-122 and 250-66. • Enter BTU to find Kilowatts per Hour • Enter Kilowatts per Hour to find BTU • Ohm’s Law Calculations – enter any two values to solve for the third • Enter, solve, or convert to Circular MILS wire sizes Note: Electrical math is universal. However, code-based sizing solutions are based on the US National Electrical Code® (NEC); users in other countries should check with their local Code Officials for applicability. SUBSCRIPTION INFORMATION The first seven days are free. Subscriptions offered will automatically renew at the end of the chosen period. Upon purchase confirmation and completion of a free trial, payment will be charged to your Apple account. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Account (Apple ID) > Subscriptions. TRADEMARKS ElectriCalc(TM) and Calculated Industries® are trademarks and registered trademarks of Calculated Industries, Inc. Copyright 2024 ## Key features - NEC compliant calculations - Wire and conduit sizing - Voltage drop calculations - Motor full-load amps - Ohm's Law solver - Built-in help and tutorials ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 1 Month Full Access | $4.99 | per month | | 1 Year Full Access | $39.99 | per year | ## Recent user reviews (10 of 32) All indexed reviews: https://appshunter.io/ios/app/electricalc-pro/id569677304/reviews.md ### 5/5 — Electrician *2026-06-16* Great app ### 5/5 — Pro *2026-05-01, version 10.7.5* Excelente aplicación de ingeniería eléctrica ### 5/5 — Excellent Tool *2026-01-30* Great tool for engineering teams! ### 5/5 — Ingeniería *2025-12-04, version 10.7.5* Siempre me ha sido de utilidad en mis actividades diarias laborales ### 5/5 — Congratulations *2025-11-29, version 10.7.5* I have seen, along the years, how this app is improving and sometimes, i get impressed about new functions ### 5/5 — Service electricians dream. *2025-08-29* This app is a major help in finding wire size, conduit, and so many more. A major help and has been for years. ### 5/5 — Útil *2024-11-05, version 10.7.5* Muy útil herramienta ### 5/5 — Buena Herramienta *2024-09-19, version 10.7.5* Me da muy buen soport ### 5/5 — Print *2024-09-11* Option to print. ### 5/5 — Best Electrical Calculator ever! *2024-08-15* I have been using this app for years as I started with and still have the original calculator. I have been providing electrical designs in many industries and this is a great fast tool. ## Frequently asked questions about ElectriCalc Pro ### What does ElectriCalc Pro do? ElectriCalc Pro is a comprehensive electrical reference tool that allows electricians and electrical professionals to perform complex calculations quickly and accurately. It is designed to ensure calculations are in conformance with the latest National Electrical Code (NEC) standards, covering a wide range of needs from wire sizing to voltage drop and motor calculations. ### What are the key features of ElectriCalc Pro? Key features include calculations for wire sizes, voltage drop, conduit sizing, motor full-load amps, fuse and breaker sizes, and grounding conductor sizes, all compliant with various NEC versions. It also includes Ohm's Law calculations and conversions between different electrical units like Amps, Watts, and Volts. ### How much does ElectriCalc Pro cost? The app offers a free trial period, allowing users to try its full functionality before purchasing. Your App Store account is not charged by Apple during this free trial. After the trial, it operates on a paid model, indicated by the 'free with in-app purchases' monetization strategy. ### What versions of the NEC does the app support? ElectriCalc Pro is compliant with a wide range of NEC versions, including 2023, 2020, 2017, 2014, 2011, 2008, 2005, 2002, 1999, and 1996 NEC®. This extensive compatibility ensures it remains a relevant tool for professionals working with different code requirements. ### Who is the target audience for ElectriCalc Pro? The app is specifically designed for electrical contractors, designers, electricians, and lighting specialists. It aims to help these professionals solve tough electrical calculations efficiently and deliver solutions that meet code compliance requirements, saving them time, trouble, and money. ## Version history (last 5 releases) ### 10.7.8 — 2026-08-10 NEC 2026 code changes to NEC table 310.16. ### 10.7.5 — 2024-06-08 Emergency fix to receipt handling. ### 10.7.3 — 2024-06-08 Fix to app-freeze. ### 10.7.2 — 2024-06-06 • Quickly learn advanced calculator skills. • Press and hold any key for clear definitions, examples, and usage guides. • A complete user manual is also available. • Swipe left to right to edit calculations with ease. • No more frustrating backspaces! • Designed for natural iPhone navigation. ### 10.6.1 — 2023-06-07 Revised with NEC 2023 table changes. ## Apps similar to ElectriCalc Pro | App | Rating | Price | Category | | --- | --- | --- | --- | | [Voltage Drop Calculator.](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064) | 4.6 (412) | Free | Utilities | | [Ohms Law Calc.](https://appshunter.io/ios/app/ohms-law-calc/id491898006) | 4.7 (1,323) | Free | Utilities | | [Kopperfield](https://appshunter.io/ios/app/kopperfield/id6736772332) | 3.9 (9) | Free | Utilities | | [Mike Holt's Electrical Toolbox](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647) | 4.6 (197) | Free | Utilities | | [Southwire® Voltage Drop Calc](https://appshunter.io/ios/app/southwire-voltage-drop-calc/id440338420) | 4.6 (1,462) | Free | Utilities | | [Electrical Calculator lite](https://appshunter.io/ios/app/electrical-calculator-lite/id922903696) | 4.6 (574) | Free | Utilities | ## More apps by Calculated Industries - [Boater's Pocket Reference](https://appshunter.io/ios/app/boaters-pocket-reference/id323913317) - [Navy SEAL Fitness](https://appshunter.io/ios/app/navy-seal-fitness/id324155166) - [I.D. 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*