Best Electrical Box Fill Calculator Apps

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NEC Box & Conduit Calc by V PUGAZHENTHI

NEC Tools for Electricians

Strong Contender

4.9(19 ratings)

FreeIn-App Purchases

Calculate electrical box and conduit fill accurately according to the NEC. This app provides instant, reliable calculations for electricians, contractors, and students, saving time on job sites. It offers support for various box and conduit types, conductor sizes, and includes wire volume data.

NEC Box Fill Calculator by Hilal Demir

Fast NEC 2026 Calculations

Worth Considering

Southwire® Conduit Fill Calc

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More Electrical Box Fill Calculator apps to explore

by Southwire Company

Conduit size calculationNEC fill percentagesJam probability

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.

This app simplifies electrical wiring box fill calculations with detailed breakdowns by wire size and component. It offers an optional cable counting mode and includes volumes for standard boxes and plaster rings for quick reference. Results are displayed on a single screen for easy access and can be shared via email.

Detailed wire size and component calculationsOptional cable counting modeStandard box and plaster ring volumes

NEC Box Fill in Seconds

This utility app helps electricians and contractors perform precise electrical box fill calculations according to the latest codes. It also includes a comprehensive construction calculator for dimensional math, area, volume, and right-angle solutions.

Electrical box fill calculationsConstruction calculatorDimensional math (feet-inches-fractions, metric)

(3)

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Electrician's Sidekick

by IDEAL INDUSTRIES, INC

Conduit bending calculatorWire sizing and voltage drop calculatorConduit fill calculator

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.

This app simplifies electrical box fill calculations for any job size. It allows users to create and save unlimited calculations, solve for various box sizes, and export results to spreadsheets or print directly. It supports current electrical code standards and includes a built-in construction calculator.

Unlimited saved calculationsSolve for custom and compound boxesExport results to spreadsheet

NEC Art.314 Box Volume

Capacity Calculator & Code

Conduit fill calculations for various types and sizesJunction box fill analysisVoltage drop calculator

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.

Conduit Fill Pro - Electrician

(3)

freemium

NEC 2023 Conduit Calculator

Electrical Code-A-Day

Quiz for Electricians

Daily electrical code questionsQuestions written by a real electricianCovers a wide range of electrical topics

Test your electrical knowledge daily with a new question based on the US electrical code. Perfect for apprentices, journeymen, and masters seeking to learn or refresh their understanding of electrical concepts and regulations.

📊 Productivity

(9.2K)

free

Voltkit: NEC Conduit Fill Calc

Conduit Bending & Voltage Drop

Mike Holt's Electrical Toolbox

Electrical Power Calculator

Conductor sizingVoltage drop limitationsCircuit protection sizing

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.

WireSpan: Conduit Fill Calc

(197)

free

NEC Voltage Drop & Wire Size

Ohmly: Electrical Calculator

Ohm's law, AWG, SMD & more

Canada Electricians Calculator

CEC Electrical Calculators

Electrician Field Calculator

Conduit, Wire & Voltage Tools

TrueFill: Conduit Fill

Conduit Fill Calculator