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😊(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

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)
$1.99
#50in Productivity
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 tool helps electricians quickly calculate the correct conduit size based on wire types, gauges, and desired fill percentages, adhering to NEC standards. It offers a streamlined interface for field use and planning, with options to save calculations and override recommendations.

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
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

This app is a specialized calculator for electricians to simplify conduit bending calculations. It offers detailed diagrams and step-by-step guidance for various bend types, helping users save time and focus on installation. Users can customize settings for different conduit sizes and units of measurement.

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 app is a conduit bending calculator designed for electricians and DIY enthusiasts. It provides accurate measurements for various bend types, accounting for bender and conduit specifications. Users can input data intuitively and receive instant feedback on bend feasibility.

Accurate centerline radius algorithmSupports multiple bend types (offset, saddle, 90°, etc.)Intuitive data input (number pad, slider)
📊 Productivity
(3.6K)
paid
5
2017 Master Electrician Ref.
2017 Master Electrician Ref.
2017 Master Electrician Ref.
A handbook for electricians
$9.99

This digital handbook provides electricians and related professionals with essential electrical formulas, diagrams, and reference tables. It offers calculations, a dictionary of terms, and detailed information on wiring, motors, transformers, and more, all accessible on a mobile device.

Electrical formulas and calculationsWiring diagrams for various systemsMotor and transformer specifications
📊 Productivity
(1.2K)
paid
6
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire Calculator
Free

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.

Determine wire size for voltage dropCalculate voltage drop for conductor runsLimit wire size by voltage drop
🔧 Utilities
(1.5K)
free
7
AWG Calculator: Wire Size
AWG Calculator: Wire Size
AWG Calculator: Wire Size
Electrician Wire Tool
Free

This professional tool provides electricians with accurate, code-based electrical calculations for wire sizing, voltage drop, circuit breakers, and more. It includes NEC® code references and specialized calculations for various systems. Save time and ensure accuracy in the field or during planning.

Wire size (AWG) calculationsVoltage drop calculationCircuit breaker sizing
🔧 Utilities
(67)
free with in-app purchases
8
Conduit Fill Capacity Calculator
Conduit Fill Capacity Calculator
Conduit Fill Capacity Calculator
by TE Connectivity Corporation
Free

Easily determine the maximum number of data cables that can fit within a conduit of a specific size. Input your conduit dimensions and desired fill ratio to get an instant calculation.

Calculate maximum cable capacitySelect conduit sizeChoose fill ratio
🔧 Utilities
(1)
free
9
Cerrowire Calculators
Cerrowire Calculators
Cerrowire Calculators
by Cerro Wire LLC
Free

Calculate conduit fill and size based on NEC guidelines for copper and aluminum building wire. Determine the maximum number of conductors for a given raceway or the required raceway size for specific conductors.

NEC conduit fill calculationsConduit sizing for conductorsSupports copper and aluminum wire
🔧 Utilities
(5)
free
10
Electrician's Sidekick
Electrician's Sidekick
Electrician's Sidekick
by IDEAL INDUSTRIES, INC
Free

This free tool consolidates essential electrical calculations and reference guides into a single app. It offers precise tools for conduit bending, wire sizing, voltage drop, and conduit fill, designed to enhance fieldwork efficiency and accuracy for professionals. The app functions offline, ensuring constant access to critical information.

Conduit bending calculatorWire sizing and voltage drop calculatorConduit fill calculator
📊 Productivity
(16)
free
11
Wire Gauge & Size Calculator
Wire Gauge & Size Calculator
Wire Gauge & Size Calculator
Min Wire Gauge for Vdrop %
Free

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.

Calculates minimum wire gaugeSupports voltage drop percentageMultiple wire size units (AWG, mm, mm², inches)
🔧 Utilities
(9)
ad-supported
12
Electrician's Helper
Electrician's Helper
Electrician's Helper
by Sam Virgillo
$12.99

This app simplifies electrical work by providing quick access to electrical codes and performing complex calculations for installations. It helps electricians find conductor ampacity, calculate voltage drop, determine box fill, and size raceways, among many other essential functions.

3 phase delta and wye circuit calculationsConductor ampacity lookup (NEC/CEC)Voltage drop calculation
📊 Productivity
(13)
paid
13
RIGID: Conduit Bending Calculator
RIGID: Conduit Bending Calculator
RIGID: Conduit Bending Calculator
by Bret Hardman
$2.99

This app is a professional tool for electricians and technicians, offering advanced calculations for various conduit bending scenarios. It supports multiple bend types, allows for custom bender and shoe specifications, and can share bending details via text.

Advanced bending calculationsSupports multiple bend types (90, offsets, saddles)Customizable bender and shoe specifications
📊 Productivity
(14)
paid
14
DC Wire Sizer
DC Wire Sizer
DC Wire Sizer
Easy Wire Sizing Calculator!
$2.99

Calculate appropriate DC wire sizes for electrical projects, preventing equipment damage and fires. Save, edit, and export wire run details for electrical plans and material purchases. Features a wizard for easy sizing for all users.

Calculates wire size, voltage drop, and ampacitySupports custom DC voltages up to 500 ampsSave, edit, and export wire run details
🔧 Utilities
(21)
paid
15
Conduit Fill Pro
Conduit Fill Pro
Conduit Fill Pro
Capacity Calculator & Code
Free
🔧 Utilities
(0)
16
Electrical Calculations
Electrical Calculations
Electrical Calculations
by Egal Net di Ettore Gallina
Free

This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.

Wire size and voltage drop calculationsPower, current, and resistance calculationsMotor performance and connection diagrams
📊 Productivity
(125)
free with in-app purchases
17
Ring Sizer・Tape Measure・Metrix
Ring Sizer・Tape Measure・Metrix
Ring Sizer・Tape Measure・Metrix
Digital Measuring & AR Ruler
Free

Transform your smartphone into a precise digital measuring tape. Measure objects, size furniture, and scan rooms in 3D using augmented reality. Supports multiple units and allows saving/sharing measurements.

Real-time object measurementAR room scanningFurniture sizing
🔧 Utilities
(746)
subscription
18
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Electrical Power Calculator
Free

This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

Conductor sizingVoltage drop limitationsCircuit protection sizing
🔧 Utilities
(197)
free
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

Access comprehensive drill bit size charts with ease. Quickly find conversions between US Number/Letter, Fractional-Inch, and Metric sizes. A handy reference for professionals and students alike.

Drill bit size chartsUS Number/Letter gauge sizesFractional-Inch sizes
🔍 Reference
(21)
paid
20
Phased: Circuit Colors
Phased: Circuit Colors
Phased: Circuit Colors
Electrical Wire Reference App
$0.99

This app helps electricians quickly identify the correct wire colors for various electrical phasing jobs. It offers selections for three-phase and single-phase systems, with adjustable color settings that are remembered for future use.

Three-phase 120/208V wire colorsThree-phase 277/480V wire colorsSingle-phase wire colors
📊 Productivity
(12)
paid