Best Conduit Size For 3-14Mm2 And 1-5.5Mm2 Thhn Wire Apps

226+ iOS apps curated and reviewed

4.4 avg rating
11 free apps
Updated May 2026

Finding the right conduit size for 3-14mm2 and 1-5.5mm2 thhn wire app can be overwhelming with so many options. We've analyzed 226+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Conduit Size For 3-14Mm2 And 1-5.5Mm2 Thhn Wire

Southwire® Conduit Fill Calc#1

Southwire® Conduit Fill Calc by Southwire Company

Editor's Choice
🔧 Utilities
4.5😊(679 ratings)
Free
Southwire® Conduit Fill Calc screenshot 1
Southwire® Conduit Fill Calc screenshot 2
Southwire® Conduit Fill Calc screenshot 3

This application helps electricians, engineers, and contractors quickly determine the proper conduit size to use based on NEC guidelines, including fill percentages and jam probability. Simply input conduit type, size, and conductors, and the app will calculate the conduit fill percentage for you.

What We Love

  • 🚀 Quick and easy calculations
  • 👍 User-friendly interface with spin wheel controls
  • 📊 Shows actual fill percentage and NEC compliance
  • 🔧 Ability to add multiple wire sizes simultaneously

Room to Improve

  • ⚠️ Accuracy issues reported by multiple users
  • ❌ Limited wire gauge options (missing 16 & 18 AWG)
  • 🔄 Changing conduit type erases conduit size
Pipe N Wire#2

Pipe N Wire by Francisco Alcala

Conduit Fill
Strong Contender
📊 Productivity
3.6(9 ratings)
$0.99
Pipe N Wire screenshot 1
Pipe N Wire screenshot 2
Pipe N Wire screenshot 3
Pipe N Wire screenshot 4
Pipe N Wire screenshot 5

This application is a fast and reliable conduit fill calculator that helps electricians determine the right conduit size based on selected wires, pipe material, and desired fill percentage, all while being NEC-compliant. With its intuitive interface and robust features, it streamlines workflow and takes the guesswork out of conduit sizing, making it an essential tool for electricians to work with confidence.

Conduit Bender Elite - Calc#3

Conduit Bender Elite - Calc by Cyberprodigy LLC

Calculator for Electricians
Worth Considering
🔧 Utilities
4.8😊(1.6K ratings)
$7.99In-App Purchases
#84in Utilities
Conduit Bender Elite - Calc screenshot 1
Conduit Bender Elite - Calc screenshot 2
Conduit Bender Elite - Calc screenshot 3
Conduit Bender Elite - Calc screenshot 4
Conduit Bender Elite - Calc screenshot 5
Conduit Bender Elite - Calc screenshot 6

An essential calculator designed for Electricians, the Conduit Bender Elite™ simplifies conduit bending by providing step-by-step guidance and support for various bends. It offers a wide range of bend types and optional digital level functionality to streamline installations, with customizable preference settings for different conduit sizes. Email techsupport@cyberprodigy.com for assistance or suggestions for future enhancements.

What We Love

  • 👍 Great app for beginners
  • 🚀 Speeds up bending process
  • 💡 Helpful for teaching others
  • 👍 Accurate and time-saving

Room to Improve

  • 🐛 Digital level not working
  • 🐛 Missing pipe size options
  • 💰 Overpriced for limited features

More Conduit Size For 3-14Mm2 And 1-5.5Mm2 Thhn Wire apps to explore

4
QuickBend: Conduit Bending
QuickBend: Conduit Bending
QuickBend: Conduit Bending
Conduit Bending Calculator
$6.99

This innovative conduit bending calculator app, designed by an electrician, provides precise measurements for conduit bending while being user-friendly and visually appealing. Suitable for professionals and beginners alike, it offers accurate calculations considering various factors like shoe radius and conduit type, ultimately helping users save time and money with its detailed documentation and intuitive interface.

📊 Productivity
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5
2017 Master Electrician Ref.
2017 Master Electrician Ref.
2017 Master Electrician Ref.
A handbook for electricians
$9.99

An essential electronic pocket reference guide for electricians working in residential, industrial, and commercial settings, offering calculations, diagrams, code information, tools, safety guidelines, and more. Accessible on iPhones, iPod Touch, and iPads. Explore the complete functionality at MasterSparky.com.

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(1.2K)
6
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire Calculator
Free

Calculate the right wire size for your electrical circuit with this voltage drop calculator. Ensure proper conductivity while meeting specific voltage drop limits and NEC ampacity standards. Perfect for AWG and KCMIL sizes in various applications.

🔧 Utilities
(1.4K)
7
AWG Calculator: Wire Size
AWG Calculator: Wire Size
AWG Calculator: Wire Size
Electrician Wire Tool
Free

This electrical calculation tool simplifies wire size and other calculations following NEC standards, making it ideal for professionals and DIYers. Download now and try it for free for a month to streamline your electrical design and installation work.

🔧 Utilities
(67)
8
Conduit Fill Capacity Calculator
Conduit Fill Capacity Calculator
Conduit Fill Capacity Calculator
by TE Connectivity Corporation
Free

This application helps you determine the maximum number of data cables that can fit in a conduit of a specific size, based on a chosen fill ratio. Try it out to easily calculate conduit fill capacity and plan your cable management efficiently.

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(1)
9
Cerrowire Calculators
Cerrowire Calculators
Cerrowire Calculators
by Cerro Wire LLC
Free

This application provides calculators to help determine the correct conduit size for copper and aluminum building wire based on the National Electrical Code. It allows users to calculate the maximum number of conductors that fit in a raceway or the required raceway size for specific conductors, making it easy to size conduit quickly and accurately.

🔧 Utilities
(5)
10
Electrician's Sidekick
Electrician's Sidekick
Electrician's Sidekick
by IDEAL INDUSTRIES, INC
Free

This free tool combines multiple electrical calculators into one convenient app, allowing electricians to efficiently and accurately complete tasks such as conduit bending, wire sizing, and voltage drop calculations. With its various calculators and features, it helps electricians maximize their fieldwork efficiency and accuracy, and is available for use even without internet connectivity.

📊 Productivity
(16)
11
Wire Gauge Calculator.
Wire Gauge Calculator.
Wire Gauge Calculator.
Min Wire Gauge for Vdrop %
Free
🔧 Utilities
(1)
12
Electrician's Helper
Electrician's Helper
Electrician's Helper
by Sam Virgillo
$12.99

This application simplifies electrical installations by providing a range of calculators and lookup tools for tasks such as circuit calculations, conductor sizing, and code compliance. With it, users can quickly and easily perform complex calculations and find relevant information to ensure accurate and safe electrical installations, try it now.

📊 Productivity
(13)
13
RIGID: Conduit Bending Calculator
RIGID: Conduit Bending Calculator
RIGID: Conduit Bending Calculator
by Bret Hardman
$2.99

This advanced bending calculator helps electricians working with conduit of various types and sizes to quickly obtain essential information and make accurate calculations for multiple bends. It offers features such as bender selection, conduit marking, and a multiplier card, making it a valuable tool for professionals in the field, try it today!

📊 Productivity
(14)
14
DC Wire Sizer
DC Wire Sizer
DC Wire Sizer
Easy Wire Sizing Calculator!
$2.99

This application is a fast and safe wire sizing calculator designed for DC wiring projects, helping users determine the correct wire size, voltage drop, and ampacity for various applications. It offers a range of features, including the ability to save, edit, and export wire runs, making it a valuable tool for professionals and DIYers to ensure safe and efficient electrical planning.

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(21)
15
Conduit Fill Pro
Conduit Fill Pro
Conduit Fill Pro
Capacity Calculator & Code
Free
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(0)
16
Electrical Calculations
Electrical Calculations
Electrical Calculations
by Egal Net di Ettore Gallina
Free
📊 Productivity
(125)
17
Ring Sizer・Tape Measure・Metrix
Ring Sizer・Tape Measure・Metrix
Ring Sizer・Tape Measure・Metrix
Digital Measuring & AR Ruler
Free

The application allows users to transform their smartphones into a digital measuring tape, offering real-time measurements, imperial and metric unit support, and the ability to save and share measurements. It also features augmented reality (AR) technology to scan rooms and automatically calculate dimensions. Users can try the app and subscribe to a premium version to access its full set of features.

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(22)
18
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Electrical Power Calculator
Free

An industry-leading electrical power calculator app designed by Mike Holt for electricians, inspectors, contractors, and engineers. Perform conductor sizing, circuit protection, race sizing, and more with this practical and useful tool.

🔧 Utilities
(197)
19
Drill Size Charts - Drill bit size tables to show US Number / Letter and Fraction Inch sizes in Decimal Inch and Metric Conversions
Drill Size Charts - Drill bit size tables to show US Number / Letter and Fraction Inch sizes in Decimal Inch and Metric Conversions
Drill Size Charts - Drill bit size tables to show US Number / Letter and Fraction Inch sizes in Decimal Inch and Metric Conversions
by Chewy Applications
$0.99

This application provides easy access to drill bit size charts, allowing users to quickly find decimal inch and metric size equivalents for various drill bit types, including US Number and Letter Gauge Sizes, Fractional-Inch Sizes, and Metric Sizes. A helpful reference tool for professionals and students, it features search functionality, support for all device orientations, and is available for use across multiple iOS devices.

🔍 Reference
(21)
20
Phased: Circuit Colors
Phased: Circuit Colors
Phased: Circuit Colors
Electrical Wire Reference App
$0.99

This electrical wire reference app helps users quickly determine the correct wire color to pull on the job, offering three phase options and adjustable colors that are saved for future use. Download the app to streamline your wire pulls and make your work easier.

📊 Productivity
(12)