Best Electrical Load Calculator Apps

244+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated September 2026

Looking for free electrical load calculator apps? 18 of our 244+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Electrical Load Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Mike Holt's Electrical ToolboxMike Holt's Electrical ToolboxFree4.6★ (197)NoNoAug 2026
2NEC Load CalculatorNEC Load CalculatorFree5.0★ (2)NoYesSep 2026
3eLoad CalculatoreLoad CalculatorFreeNoNoMay 2026
4KopperfieldKopperfieldFree3.9★ (9)NoNoAug 2026
5Electrical Calculator liteElectrical Calculator liteFree4.6★ (574)YesYesSep 2026
6Electrical Load Calc NECElectrical Load Calc NEC$0.993.0★ (4)NoYesAug 2026
7Electrical Calculator ProElectrical Calculator ProFreeYesYesMay 2026
8Southwire® Voltage Drop CalcSouthwire® Voltage Drop CalcFree4.6★ (1.5K)NoNoSep 2026

Top Picks for Electrical Load Calculator

NEC Load Calculator#2

NEC Load Calculator by V PUGAZHENTHI

Residential, Commercial, Panel
Strong Contender
🔧 Utilities
5.0(2 ratings)
FreeIn-App Purchases
NEC Load Calculator screenshot 1
NEC Load Calculator screenshot 2
NEC Load Calculator screenshot 3
NEC Load Calculator screenshot 4
NEC Load Calculator screenshot 5
NEC Load Calculator screenshot 6

This app performs electrical load calculations based on the NEC 2023 code. It offers modules for residential, commercial, motor, and branch circuit calculations, along with panel scheduling and PDF export. Designed for licensed electricians and contractors.

More Electrical Load Calculator apps to explore

FAQ about Electrical Load Calculator

What are the best electrical load calculator apps for iPhone?
Mike Holt's Electrical Toolbox tops our electrical load calculator apps ranking as of September 2026, with a 4.6-star average from 197 App Store ratings, and it's free to download.
Yes — 18 of the top electrical load calculator apps we rank are free to download, including Mike Holt's Electrical Toolbox and NEC Load Calculator.
Mike Holt's Electrical Toolbox has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 244+ electrical load calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app performs a variety of essential electrical calculations. These include conductor sizing, accounting for voltage drop limitations, circuit protection sizing, race sizing, and equipment grounding conductor sizing for various types of equipment like heating, air-conditioning, motors, and transformers. It also handles dwelling-unit service calculations.
The app is specifically designed for professionals in the electrical industry. This includes electricians, inspectors, instructors, contractors, and engineers who need practical and useful tools for their daily work.