Best Wire Size Calculator Apps

249+ iOS apps curated and reviewed

4.6 avg rating
15 free apps
Updated September 2026

The best wire size calculator apps on iPhone average 4.6★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Wire Size Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Southwire® Voltage Drop CalcSouthwire® Voltage Drop CalcFree4.6★ (1.5K)NoNoSep 2026
2Wire Gauge & Size CalculatorWire Gauge & Size CalculatorFree4.9★ (13)YesYesSep 2026
3AWG Calculator: Wire SizeAWG Calculator: Wire SizeFree4.7★ (69)NoYesSep 2026
4Southwire® Conduit Fill CalcSouthwire® Conduit Fill CalcFree4.5★ (746)NoNoSep 2026
5Wire Size CalcWire Size Calc$0.99NoYesAug 2026
6Mike Holt's Electrical ToolboxMike Holt's Electrical ToolboxFree4.6★ (197)NoNoAug 2026
7AWG Wire Size CalculatorAWG Wire Size Calculator$0.99 was $4.99NoJul 2026
8Building Wire SelectorBuilding Wire SelectorFree5.0★ (2)NoNoAug 2026

Top Picks for Wire Size Calculator

Southwire® Voltage Drop Calc#1
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
Wire Gauge & Size Calculator#2

Wire Gauge & Size Calculator by V PUGAZHENTHI

AWG & mm² · Voltage Drop, Amps
Strong Contender
🔧 Utilities
4.9(13 ratings)
FreeAds
Wire Gauge & Size Calculator screenshot 1
Wire Gauge & Size Calculator screenshot 2
Wire Gauge & Size Calculator screenshot 3
Wire Gauge & Size Calculator screenshot 4
Wire Gauge & Size Calculator screenshot 5
Wire Gauge & Size Calculator screenshot 6

This utility app calculates the minimum wire size needed for electrical installations based on voltage, current, distance, and allowable voltage drop. It supports various units and wire materials, ensuring safe and efficient power distribution for diverse applications.

More Wire Size Calculator apps to explore

FAQ about Wire Size Calculator

What are the best wire size calculator apps for iPhone?
Southwire® Voltage Drop Calc tops our wire size calculator apps ranking as of September 2026, with a 4.6-star average from 1.5K App Store ratings, and it's free to download.
Yes — 15 of the top wire size calculator apps we rank are free to download, including Southwire® Voltage Drop Calc and Wire Gauge & Size Calculator.
Southwire® Voltage Drop Calc has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 249+ wire size calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app helps you determine the correct wire size for electrical circuits. It calculates the appropriate wire size based on specified voltage drop limits and the current carrying capacity (ampacity) of the circuit, ensuring compliance with National Electrical Code (NEC) standards.
The app allows you to determine the wire size needed to meet specific voltage drop limits. It can also calculate the voltage drop for a given conductor run. Calculations are limited by both voltage drop and NEC ampacity, and it supports AWG and KCMIL wire sizes.

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