Best Conduit Fill Apps

Determine wire size for voltage dropCalculate voltage drop for conductor runsLimit wire size by voltage drop

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.

(1.5K)

Conduit Fill Capacity Calculator

by TE Connectivity Corporation

Calculate maximum cable capacitySelect conduit sizeChoose fill ratio

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.

(1)

FILL ◦ Conduit Fill Calculator

NEC 2026 & 2023 Wire Sizing

NEC 2023 compliant calculationsForward and reverse calculation modesReal-time fill percentage status

This app calculates conduit fill percentages based on NEC 2023 standards. It helps electricians determine if wires will fit in a conduit or find the smallest suitable conduit for a given set of wires. Features include real-time status updates, history, and export options.

NEC Box & Conduit Calc

NEC Box & Conduit Fill

Box fill calculationsConduit fill calculationsWire volume data

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.

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Prysmian Group Conduit Fill

Electrical Conduit Fill

NEC code selection (2011, 2014, 2017)Metric or standard conductorsAllowable fill rates

This tool quickly calculates the minimum conduit size required for electrical projects based on National Electrical Code standards. It supports various conductor types, insulation, and conduit options, providing essential fill data for professionals.

(2)

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.

(197)

ConduitLab: NEC Calculator

NEC Voltage Drop & Fill Calc

Ampacity calculations with deratingVoltage drop calculations2D conduit fill visualizer

This app provides professional NEC electrical calculations for electricians and engineers. It features ampacity, voltage drop, and conduit fill calculations, with a unique 2D visualizer to see conductor layouts. Generate inspector-ready PDF reports for documentation and record-keeping.

Conduit Filler

The electrician's helper

Conduit fill calculationsConduit sizing calculationsSupports US, Canadian, and UK codes

This app assists electrical tradespeople with conduit fill and sizing calculations for various wire gauges. It supports US, Canadian, and UK electrical codes, offering a 7-day free trial before a monthly or yearly subscription.

Conduit Sizing Calculator

by Creature Code Mobile, LLC

Ohm's Law calculationsVoltage calculationCurrent calculation

This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.

(165)

quickly calculate conduit fill

Conduit Fill

$4.99

This app helps electricians quickly calculate conduit fill based on the latest NEC or CEC codes. Easily add various wire types and quantities to determine the minimum required conduit size.

NEC and CEC code calculationsSupport for up to 1000 wiresSelect from different wire types

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)

(3.9K)

Fill and Derating Calculator

Derated: Conduit Fill

$1.99

This app simplifies complex electrical calculations for electricians. It allows real-time calculation of conduit fill and wire ampacity derating, adhering to NEC guidelines. Results are accurate and easily shareable for collaboration or client communication.

Real-time conduit fill calculationSimultaneous wire ampacity deratingAdheres to NEC guidelines

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Master Electrician Ref. Lite

A handbook for electricians

Motor and wiring informationAmpacity tablesConduit fill and grounding sizes

This electronic pocket reference guide provides essential information for electrical professionals. It offers calculations, code tables, and detailed sections on motors, ampacities, grounding, and more, all accessible on your mobile device.

(2.4K)

IEC Box & Conduit Calc

IEC 60364 Sizing Guide

Conduit Fill & Bending Calc

(0)

Box Fill, EMT Bend, Ampacity

16 NEC calculatorsNEC year-aware (2017-2026)Inspector citations on results

This professional calculator helps licensed electricians perform complex NEC code calculations for conduit fill, voltage drop, wire sizing, and more. It offers multiple NEC code years and provides inspector-ready PDF exports with project management features. Designed for offline use in the field.

Electrician Tools: Calc & Bend

Bend, Size, Fill—All in One