Best Electrical Calculation Tools For Electricians Apps

194+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated May 2026

Every iPhone needs a few good electrical calculation tools for electricians apps. We benchmark 194+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Electrical Calculation Tools For Electricians Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Master Electrician Ref. LiteMaster Electrician Ref. LiteFree4.7★ (2.4K)NoNoAug 2026
2Electrical CalculationsElectrical CalculationsFree4.6★ (125)YesYesAug 2026
3Mike Holt's Electrical ToolboxMike Holt's Electrical ToolboxFree4.6★ (197)NoNoJul 2026
4Electrician's SidekickElectrician's SidekickFree3.5★ (16)NoNoMay 2026
5Electrician Handbook — BasicsElectrician Handbook — BasicsFree was $5.994.8★ (986)NoYesAug 2026
6ElectriCalc ProElectriCalc ProFree was $29.994.9★ (256)NoYesAug 2026
7Dakota's Electrical CalculatorDakota's Electrical CalculatorFree5.0★ (6)NoNoJul 2026
8National Electricians CalcNational Electricians CalcFree5.0★ (1)NoYesJul 2026

Top Picks for Electrical Calculation Tools For Electricians

Master Electrician Ref. Lite#1

Master Electrician Ref. Lite by PawEng, LLC

A handbook for electricians
Editor's Choice
📊 Productivity
4.7(2.4K ratings)
Free
Master Electrician Ref. Lite screenshot 1
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This electronic pocket reference guide provides essential information for electrical professionals. It offers calculations, code tables, and detailed sections on motors, ampacities, grounding, and more, all accessible on your mobile device.

Electrical Calculations#2

Electrical Calculations by Egal Net di Ettore Gallina

Cable sizing & capacity
Strong Contender
📊 Productivity
4.6(125 ratings)
FreeAdsIn-App Purchases
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This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.

Mike Holt's Electrical Toolbox#3

Mike Holt's Electrical Toolbox by Mike Holt Enterprises

Electrical Power Calculator
Worth Considering
🔧 Utilities
4.6(197 ratings)
Free
Mike Holt's Electrical Toolbox screenshot 1
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This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

More Electrical Calculation Tools For Electricians apps to explore

4
Electrician's Sidekick
Electrician's Sidekick
Electrician's Sidekick
by IDEAL INDUSTRIES, INC
Free

This free tool consolidates essential electrical calculations and reference guides into a single app. It offers precise tools for conduit bending, wire sizing, voltage drop, and conduit fill, designed to enhance fieldwork efficiency and accuracy for professionals. The app functions offline, ensuring constant access to critical information.

Conduit bending calculatorWire sizing and voltage drop calculatorConduit fill calculator
📊 Productivity
(16)
free
5
Electrician Handbook — Basics
Electrician Handbook — Basics
Electrician Handbook — Basics
Electric circuit, voltage, ohm
Free
$5.99 | 100% OFF

This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.

Electrical theory topicsInteractive circuit diagramsCalculators and formulas
🔍 Reference
(986)
free
6
ElectriCalc Pro
ElectriCalc Pro
ElectriCalc Pro
Electrician NEC Calculator
Free
$29.99 | 100% OFF

This app provides electricians and electrical professionals with a powerful tool for performing complex calculations based on the latest National Electrical Code (NEC). It offers solutions for wire sizing, voltage drop, conduit sizing, and motor calculations, saving time and ensuring code compliance.

NEC compliant calculationsWire and conduit sizingVoltage drop calculations
🔧 Utilities
(256)
free with in-app purchases
7
Dakota's Electrical Calculator
Dakota's Electrical Calculator
Dakota's Electrical Calculator
Load, Conduit & NEC Calculator
Free

This app provides electricians and apprentices with essential tools for on-the-job tracking and NEC-aligned calculations. It helps with circuit analysis, load calculations, conduit fill, motor and transformer computations, and voltage drop assessments for field use and exam preparation.

On-the-job hour tracking by areaNEC-aligned circuit calculationsBranch, feeder, and service load calculations
📚 Education
(6)
free
8
National Electricians Calc
National Electricians Calc
National Electricians Calc
#1 Electrical Calculator
Free

This app provides electricians with fast, reliable electrical calculations for the jobsite. It offers practical tools for conduit fill, ampacity, voltage drop, and more, ensuring consistent results quickly. Designed for professionals who need dependable tools without unnecessary features.

Conduit fill calculationsAmpacity calculationsVoltage drop calculations
🔧 Utilities
(1)
freemium
9
Electrician Handy Tool
Electrician Handy Tool
Electrician Handy Tool
All in one electricians tools
Free

This app provides electricians with essential tools for conduit bending, calculations, and quick reference. It simplifies electrical work with features like voltage drop calculation and a user-friendly fraction calculator.

Voltage drop calculatorConduit bending calculatorFraction calculator
📊 Productivity
(21)
free with in-app purchases
10
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
by Southwire Company
Free

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

Conduit size calculationNEC fill percentagesJam probability
🔧 Utilities
(746)
free
11
Ugly's Electrical References
Ugly's Electrical References
Ugly's Electrical References
by Informed Publishing
$12.99

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

NEC 2026 updatesMathematical formulas and calculatorsConduit bending guide with videos
📊 Productivity
(1.5K)
paid
12
Ohms Law Calc.
Ohms Law Calc.
Ohms Law Calc.
Wire Size & Voltage Drop
Free

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

Ohm's Law calculationsVoltage drop calculatorWire size calculator
🔧 Utilities
(1.3K)
free with in-app purchases
13
Electrical Tools & Reference
Electrical Tools & Reference
Electrical Tools & Reference
Electrician Training Basics
Free
📊 Productivity
(0)
14
Electrical Toolkit by HCP
Electrical Toolkit by HCP
Electrical Toolkit by HCP
Conduit + load calcs for pros
Free

This comprehensive mobile toolkit provides electricians and professionals with essential calculations, NEC-compliant tools, and field utilities. It offers features for conduit bending, fill calculations, load analysis, and various electrical calculators, all designed for speed and clarity.

Conduit bending calculationsNEC-compliant conduit fillResidential load calculations
🔧 Utilities
(18)
free
15
Electrical Calculator Pro
Electrical Calculator Pro
Electrical Calculator Pro
Wiring, Cable & Load Tools
Free
🔧 Utilities
(0)
16
AWG Calculator: Wire Size
AWG Calculator: Wire Size
AWG Calculator: Wire Size
Electrician Wire Tool
Free

This professional tool provides electricians with accurate, code-based electrical calculations for wire sizing, voltage drop, circuit breakers, and more. It includes NEC® code references and specialized calculations for various systems. Save time and ensure accuracy in the field or during planning.

Wire size (AWG) calculationsVoltage drop calculationCircuit breaker sizing
🔧 Utilities
(67)
free with in-app purchases
17
NEC Mastery
NEC Mastery
NEC Mastery
8000+ Questions & Explanations
Free

Prepare for electrician certification exams with over 8,000 practice questions and detailed explanations. Access a comprehensive quick reference guide and 20 professional NEC calculators for on-the-job use. Track work hours with a built-in log for state board submissions.

8000+ exam-style questions20 NEC calculatorsQuick reference guide
📚 Education
(156)
free with in-app purchases
18
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire Calculator
Free

Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

Determine wire size for voltage dropCalculate voltage drop for conductor runsLimit wire size by voltage drop
🔧 Utilities
(1.5K)
free
19
Electrical Wiring Simulator
Electrical Wiring Simulator
Electrical Wiring Simulator
Electrician Circuit Trainer
Free
$19.99 | 100% OFF

Practice real-world electrical wiring skills with interactive, step-by-step simulations. Learn load control, parallel/series wiring, and troubleshooting without tools or risk. Ideal for students and aspiring electricians.

Step-by-step simulationsReal-world wiring practiceLoad control and switching
📚 Education
(169)
paid
20
Electrical Formulator
Electrical Formulator
Electrical Formulator
by Historycentral.com Inc
Free

This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.

Over 100 electrical formulasSave and organize resultsShare results via email or print
📊 Productivity
(1)
freemium

FAQ about Electrical Calculation Tools For Electricians

What are the best electrical calculation tools for electricians apps for iPhone?
Master Electrician Ref. Lite tops our electrical calculation tools for electricians apps ranking as of May 2026, with a 4.7-star average from 2.4K App Store ratings, and it's free to download.
Yes — 19 of the top electrical calculation tools for electricians apps we rank are free to download, including Master Electrician Ref. Lite and Electrical Calculations.
Master Electrician Ref. Lite has no ads and has no in-app purchases, according to its App Store listing as of May 2026.
We track 194+ electrical calculation tools for electricians apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
Master Electrician Ref. Lite is an electronic pocket reference guide designed for electrical professionals. It provides quick access to essential information, including motor and wiring data, ampacities, grounding sizes, conduit fill tables, and voltage drop calculations. It also features a built-in scientific calculator and key tables from the National Electrical Code (NEC).
Key features include detailed sections on motors and wiring, ampacities, conduit fill, grounding sizes, voltage drop calculations, and conduit bending. It also includes a general scientific calculator and relevant NEC tables. The app aims to replace traditional physical reference books with a convenient digital format.