Best Conduit Fill Calculator Apps

227+ iOS apps curated and reviewed

4.4 avg rating
14 free apps
Updated May 2026

With an average user rating of 4.4★, the conduit fill calculator category is one of the App Store's strongest. Browse all 227+ apps we track, sorted so the most loved ones surface first.

Top Picks for Conduit Fill Calculator

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
Electrician's Sidekick#3

Electrician's Sidekick by IDEAL INDUSTRIES, INC

Worth Considering
📊 Productivity
3.5(16 ratings)
Free
Electrician's Sidekick screenshot 1
Electrician's Sidekick screenshot 2
Electrician's Sidekick screenshot 3
Electrician's Sidekick screenshot 4
Electrician's Sidekick screenshot 5
Electrician's Sidekick screenshot 6

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.

More Conduit Fill Calculator apps to explore

4
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)
5
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)
6
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
(3.6K)
7
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.

🔧 Utilities
(1)
8
Conduit Bender Elite - Calc
Conduit Bender Elite - Calc
Conduit Bender Elite - Calc
Calculator for Electricians
$7.99

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.

🔧 Utilities
(1.6K)
9
Pipe N Wire
Pipe N Wire
Pipe N Wire
Conduit Fill
$0.99

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.

📊 Productivity
(9)
10
NEC Box & Conduit Calc
NEC Box & Conduit Calc
NEC Box & Conduit Calc
NEC Box & Conduit Fill
Free
🔧 Utilities
(16)
11
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)
12
Ugly's Electrical References
Ugly's Electrical References
Ugly's Electrical References
by Informed Publishing
$12.99

This app is a comprehensive electrical reference guide that has been updated to align with the 2020 National Electrical Code. It offers a range of features such as calculators, interactive tools, and in-depth information for electricians, making it a valuable on-the-job resource.

📊 Productivity
(1.4K)
13
Electrician Handy Tool
Electrician Handy Tool
Electrician Handy Tool
All in one electricians tools
Free

This all-in-one tool helps electricians with their daily work by providing calculators for voltage drop, conduit bending, and fractions, making electrical work easier and more efficient. Try it out to streamline your tasks and get the job done quickly and easily.

📊 Productivity
(21)
14
Conduit Fill
Conduit Fill
Conduit Fill
quickly calculate conduit fill
$4.99
🔧 Utilities
(2)
15
SIMpull 600V Calculator
SIMpull 600V Calculator
SIMpull 600V Calculator
Southwire Calculator
Free

This application provides multiple calculators for electrical wire pull characteristics, generating NEC-compliant answers for voltage drop, wire sizing, and more. It helps users perform calculations and easily share results.

🔍 Reference
(57)
16
Prysmian Group Conduit Fill
Prysmian Group Conduit Fill
Prysmian Group Conduit Fill
Electrical Conduit Fill
Free

This electrical conduit fill calculator helps engineers, contractors, and electrical professionals quickly determine the minimum conduit size according to the National Electrical Code, saving time on complex calculations. Try it out to easily find answers for your conduit fill needs.

📊 Productivity
(2)
17
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

Experience a beautifully designed calculator with large buttons and a clear display for quick and efficient calculations. Try it now to discover the simplicity and ease of use for your everyday arithmetic needs.

🔧 Utilities
(404K)
18
Construction Master Pro Calc
Construction Master Pro Calc
Construction Master Pro Calc
Feet Inch Fraction Calculator
Free

An essential tool for professionals working with dimensions, this app optimizes speed and accuracy while reducing errors. Try it for free before purchase on your App Store account. Ideal for enhancing productivity on the go.

🔧 Utilities
(38K)
19
Pipe Trades Pro Calc
Pipe Trades Pro Calc
Pipe Trades Pro Calc
Calculator | Welding & Piping
Free

This application is an advanced pipe trades math calculator for iPhone users, offering instant answers for pipe layout and design problems. With features like cut lengths, parallel pipe cutbacks, flow rates, and more, it is a valuable tool for pipefitters, steamfitters, sprinklerfitters, and welders. Spend less time calculating and more time working with pipes. Try it out now!

🔧 Utilities
(3.6K)
20
Derated: Conduit Fill
Derated: Conduit Fill
Derated: Conduit Fill
Fill and Derating Calculator
$1.99

This conduit fill calculator app simplifies complex electrical calculations, allowing users to effortlessly calculate conduit fill and derate wires' ampacity in real-time, adhering to National Electric Code guidelines. With an intuitive interface, users can easily set up calculations, share results, and collaborate with others, streamlining communication and ensuring accurate results.

📊 Productivity
(5)

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