Best Wire Size Calc Apps

242+ iOS apps curated and reviewed

4.6 avg rating
15 free apps
Updated October 2026

With an average user rating of 4.6★, the wire size calc category is one of the App Store's strongest. Browse all 242+ apps we track, sorted so the most loved ones surface first.

Compare top Wire Size Calc Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Wire Size CalcWire Size Calc$0.995.0★ (1)NoYesOct 2026
2Southwire® Voltage Drop CalcSouthwire® Voltage Drop CalcFree4.6★ (1.5K)NoNoNov 2026
3Wire Size & Ampacity CalcWire Size & Ampacity CalcFree—NoYesNov 2026
4WireCalc - Wire SizingWireCalc - Wire Sizing$3.99 was $7.99—NoNoOct 2026
5DC Wire SizerDC Wire Sizer$2.995.0★ (24)NoNoOct 2026
6Lead Wire AmpacityLead Wire AmpacityFree—NoNoJun 2026
7Electric Ref: Wire Size & FillElectric Ref: Wire Size & FillFree—NoYesAug 2026
8E-Wire CalcE-Wire CalcFree5.0★ (1)NoNoAug 2026

Top Picks for Wire Size Calc

Wire Size Calc#1

Wire Size Calc by Rizvan Adzhoian

NEC Ampacity & Derating
Editor's Choice
🔧 Utilities
5.0(1 ratings)
$0.99In-App Purchases
Wire Size Calc screenshot 1
Wire Size Calc screenshot 2
Wire Size Calc screenshot 3
Wire Size Calc screenshot 4

Calculate the correct wire gauge for electrical circuits using official NEC ampacity tables and derating factors. Supports various load types, conductor materials, insulation, and installation methods. Works entirely offline for on-site use.

Southwire® Voltage Drop Calc#2

Southwire® Voltage Drop Calc by Southwire Company

Southwire Calculator
Strong Contender
🔧 Utilities
4.6😐(1.5K ratings)
Free
Southwire® Voltage Drop Calc screenshot 1
Southwire® Voltage Drop Calc screenshot 2
Southwire® Voltage Drop Calc screenshot 3
Southwire® Voltage Drop Calc screenshot 4
Southwire® Voltage Drop Calc screenshot 5
Southwire® Voltage Drop Calc screenshot 6

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.

What We Love

  • 🚀 Quick and useful
  • 🚀 Great Quick Reference
  • 👍 A must have app for electricians
  • 👍 Love These
  • 👍 Electrical Engineer
  • 👍 Awesome app
  • 👍 Safer
  • 👍 Useful
  • 👍 Handy
  • 👍 Great App
  • 👍 Dependable app
  • 👍 Electrician tech
  • 👍 Solid and simple to use app
  • 👍 Great app

Room to Improve

  • 🐛 Motor starting Voltage drop
  • 🐛 Useless!
  • 🐛 Won't work
  • 🐛 How to use
  • 🐛 Confused
  • 🐛 Bad app
  • 🐛 Bad
  • 🐛 Not applicable for Residential
  • 🐛 Electrician
  • 🐛 Terrible
  • 🐛 Not working
  • 🐛 What??
  • 🐛 Terrible
  • 🐛 Don't work
  • 🐛 Terrible
  • 🐛 Choice Between AWG and Metric wire Gauge
  • 🐛 Updated app not so simple
  • 🐛 The last version was better
  • 🐛 App
  • 🐛 Terrible
  • 🐛 Voltage drop calculator
  • 🐛 IOS 8
  • 🐛 One flaw
  • 🐛 Worst app ever
  • 🐛 Average

More Wire Size Calc apps to explore

FAQ about Wire Size Calc

What are the best wire size calc apps for iPhone?
Wire Size Calc tops our wire size calc apps ranking as of October 2026, with a 5.0-star average from 1 App Store ratings, and it's priced at $0.99.
Yes — 15 of the top wire size calc apps we rank are free to download, including Southwire® Voltage Drop Calc and Wire Size & Ampacity Calc.
Wire Size Calc has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 242+ wire size calc apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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