Best Conduit Fill Capacity Calculator Apps

246+ iOS apps curated and reviewed

4.2 avg rating
16 free apps
Updated September 2026

Out of 246+ conduit fill capacity calculator apps on iOS, 16 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Conduit Fill Capacity Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Conduit Fill Capacity CalculatorConduit Fill Capacity CalculatorFree4.0★ (1)NoNoAug 2026
2Southwire® Conduit Fill CalcSouthwire® Conduit Fill CalcFree4.5★ (746)NoNoSep 2026
3Conduit Fill ProConduit Fill ProFree3.7★ (3)NoYesAug 2026
4Conduit Fill & Bending CalcConduit Fill & Bending CalcFree4.5★ (4)NoYesSep 2026
5Conduit FillConduit Fill$4.993.3★ (3)NoNoAug 2026
6Prysmian Group Conduit FillPrysmian Group Conduit FillFree3.0★ (2)NoNoSep 2026
7Conduit Fill Pro - ElectricianConduit Fill Pro - ElectricianFree was $2.99NoYesAug 2026
8FILL ◦ Conduit Fill CalculatorFILL ◦ Conduit Fill CalculatorFree4.0★ (3)NoYesSep 2026

Top Picks for Conduit Fill Capacity Calculator

4.5😊(746 ratings)
Free
Southwire® Conduit Fill Calc screenshot 1
Southwire® Conduit Fill Calc screenshot 2
Southwire® Conduit Fill Calc screenshot 3

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

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
  • 💾 Customizable wire data entry
  • ⚡ Saves significant time on job sites
  • 🎯 Accurate calculations (when working properly)
  • 📱 Convenient mobile access to conduit fill information

Room to Improve

  • ⚠️ Accuracy issues reported by multiple users
  • ❌ Limited wire gauge options (missing 16 & 18 AWG)
  • 🔄 Changing conduit type erases conduit size
  • 📉 Jam probability calculations unreliable
  • 🗑️ No data persistence between calculations
  • 🐛 Blank screen crashes on older versions
  • ⚠️ Discrepancies with NEC standards calculations
Conduit Fill Pro#3

Conduit Fill Pro by Mikhail Nikitin

Capacity Calculator & Code
Worth Considering
🔧 Utilities
3.7(3 ratings)
FreeIn-App Purchases
Conduit Fill Pro screenshot 1
Conduit Fill Pro screenshot 2
Conduit Fill Pro screenshot 3
Conduit Fill Pro screenshot 4
Conduit Fill Pro screenshot 5
Conduit Fill Pro screenshot 6

This app provides professional electricians with a suite of tools for electrical calculations, including conduit fill, junction box fill, and voltage drop. It offers detailed breakdowns, code references, and offline functionality for job site reliability. Generate PDF reports for documentation and inspections.

More Conduit Fill Capacity Calculator apps to explore

FAQ about Conduit Fill Capacity Calculator

What are the best conduit fill capacity calculator apps for iPhone?
Conduit Fill Capacity Calculator tops our conduit fill capacity calculator apps ranking as of September 2026, with a 4.0-star average from 1 App Store ratings, and it's free to download.
Yes — 16 of the top conduit fill capacity calculator apps we rank are free to download, including Conduit Fill Capacity Calculator and Southwire® Conduit Fill Calc.
Conduit Fill Capacity Calculator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 246+ conduit fill capacity calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The Conduit Fill Capacity Calculator is used to determine the maximum number of data cables that can safely occupy a selected conduit size, based on a chosen fill ratio.
The app provides calculations based on user-inputted conduit size and fill ratio. It is a tool to assist in planning and does not guarantee compliance with all local codes without professional verification.