Best Electrical Calculations App

0+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated June 2026

Electrical Calculations is the household name in electrical calculations app, but it's far from the only option. We track 0+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Electrical Calculations App (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Electrical CalculationsElectrical CalculationsFree4.6★ (126)YesYesAug 2026
2Mike Holt's Electrical ToolboxMike Holt's Electrical ToolboxFree4.6★ (197)NoNoAug 2026
3Ohms Law Calc.Ohms Law Calc.Free4.7★ (1.3K)YesYesSep 2026
4Master Electrician Ref. LiteMaster Electrician Ref. LiteFree4.7★ (2.5K)NoNoSep 2026
5ElectriCalc ProElectriCalc ProFree was $29.994.9★ (354)NoYesSep 2026
6Electrical calculationElectrical calculationFreeNoYesAug 2026
7Watts Amps Volts  CalculatorWatts Amps Volts CalculatorFree4.4★ (50)YesNoAug 2026
8Electrical Engineering: QuizElectrical Engineering: QuizFree4.9★ (11)YesYesAug 2026

Top Picks for Electrical Calculations App

Electrical Calculations#1

Electrical Calculations by Egal Net di Ettore Gallina

Cable sizing & capacity
Editor's Choice
📊 Productivity
4.6(126 ratings)
FreeAdsIn-App Purchases
Electrical Calculations screenshot 1
Electrical Calculations screenshot 2
Electrical Calculations screenshot 3
Electrical Calculations screenshot 4
Electrical Calculations screenshot 5
Electrical Calculations screenshot 6

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#2

Mike Holt's Electrical Toolbox by Mike Holt Enterprises

Electrical Power Calculator
Strong Contender
🔧 Utilities
4.6(197 ratings)
Free
Mike Holt's Electrical Toolbox screenshot 1
Mike Holt's Electrical Toolbox screenshot 2
Mike Holt's Electrical Toolbox screenshot 3
Mike Holt's Electrical Toolbox screenshot 4

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.

Ohms Law Calc.#3

Ohms Law Calc. by V PUGAZHENTHI

Wire Size & Voltage Drop
Worth Considering
🔧 Utilities
4.7😊(1.3K ratings)
FreeAdsIn-App Purchases
Ohms Law Calc. screenshot 1
Ohms Law Calc. screenshot 2
Ohms Law Calc. screenshot 3
Ohms Law Calc. screenshot 4
Ohms Law Calc. screenshot 5
Ohms Law Calc. screenshot 6

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.

What We Love

  • 🚀 Great value
  • 🚀 Works perfectly
  • 🚀 Fantastic app
  • 👍 Best thing since sliced bread
  • 🚀 Useful for electrical work
  • 👍 Clean and pleasing interface
  • 🚀 Terrific app

Room to Improve

  • 👎 Have to pay again for an app already purchased
  • 👎 Not easy to use
  • 🐛 Paid but not unlocked, no response from developer
  • 👎 Annoying pop-ups
  • 🐛 Keeps shutting down
  • 👎 Worst Ohms calculator ever
  • 👎 Needs more work
  • 👎 Incorrect Ohm's law formulas

More Electrical Calculations App apps to explore

FAQ about Electrical Calculations App

What is the best electrical calculations app for iPhone?
Electrical Calculations tops our electrical calculations app ranking as of June 2026, with a 4.6-star average from 126 App Store ratings, and it's free to download.
Yes — 20 of the top electrical calculations app we rank are free to download, including Electrical Calculations and Mike Holt's Electrical Toolbox.
Electrical Calculations shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
The app offers a wide range of calculations for electrical systems, including wire sizing, voltage drop, current carrying capacity, power calculations, circuit breaker sizing, and short circuit current. It also includes electronic calculations for resistors, fuses, and circuit dividers, as well as motor-related calculations and numerous unit conversions.
The application supports several key international electrical standards, including those from the International Electrotechnical Commission (IEC), the Comitato Elettrotecnico Italiano (CEI), the National Electrical Code (NEC), and the Canadian Electrical Code (CEC).