Best Wire Ampacity Apps

Calculates minimum wire gaugeSupports voltage drop percentageMultiple wire size units (AWG, mm, mm², inches)

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.

AWG Calculator: Wire Size

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NEC, Conduit, Voltage Drop

Wire size (AWG) calculationsVoltage drop calculationCircuit breaker sizing

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.

free with in-app purchases

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Building Wire Selector

Southwire Calculator

Conductor size determinationWire and cable type selectionNational Electrical Code compliance

This tool helps determine the correct conductor size and wire type for electrical installations. It adheres to the National Electrical Code® wiring methods, ensuring compliance and safety.

The electrician's helper

Ampacity calculationsCorrection factors2026 USA National Electrical Code compliance

This app assists electrical tradespeople with ampacity calculations, incorporating correction factors based on the latest National and Canadian Electrical Codes. It offers a free trial period before requiring a monthly or yearly subscription for full functionality.

💼 Business

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free with in-app purchases

Southwire® Conduit Fill Calc

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.

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Wire (AWG) Calculator

A&P Mechanic Toolbox

AWG wire size calculationVoltage, current, and length inputsTemperature and derating factors

This app assists aircraft mechanics in selecting the correct American Wire Gauge (AWG) for aircraft wiring. It calculates wire size based on circuit length, current, voltage, temperature, and derating factors, referencing FAA guidelines.

🔍 Reference

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Wire Size & Ampacity Calc

Derating, AWG/mm², NEC IEC

This app provides electrical code and design calculations for professionals working with wiring systems. It includes tools for ampacity, wire sizing, box fill, and conduit fill, based on the 2011 National Electrical Code.

Ampacity and wire sizing calculationsDwelling service size calculationsBox fill calculations

📊 Productivity

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Erawan Electric Wire & Cable

by Non Pichitwattana

Product catalogAluminum conductor cablesCopper conductor cables

Access a comprehensive catalog of aluminum, copper conductor, and optical cables. This app also includes an electrical measurement calculator to assist with your projects.

📚 Education

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Electric Ref: Wire Size & Fill

Ampacity, conduit fill, boxes

📊 Productivity

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Cerrowire Calculators

by Cerro Wire LLC

NEC conduit fill calculationsConduit sizing for conductorsSupports copper and aluminum wire

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.

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NG Wire: NEC Ampacity & Fill

Grounding Size, Motor, & Cover

NEC® table lookupGeneral conduit fill calculationsDetailed conduit fill calculations

This app provides electrical construction professionals with quick access to National Electric Code® (NEC®) tables and calculations for wire, conduit, and motor data. It streamlines complex calculations for efficient and accurate results in the field or office.

📊 Productivity

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subscription

ElectriCalc: Engineering Tool

Voltage Drop Pro - Electrician

NEC Voltage Drop Calculator

Electrical Field Calculator

Pipe bending calculations (offsets, saddles)Conduit fill calculations (NEC Table 1)Ampacity and wire sizing

This app assists electricians with complex calculations for pipe bending, conduit fill, ampacity, voltage drop, and box fill. It also offers a professional subscription for expert electrical advice and troubleshooting.

Say goodbye to the guesswork

by Blue Sea Systems, Inc.

Wire sizing calculationABYC and Blue Sea Systems specificationsProduct search for circuit protection

This app assists electricians and enthusiasts in calculating wire sizes for installations based on ABYC and Blue Sea Systems specifications. It also helps find suitable protective products for circuits. The application functions completely offline.

🔍 Reference

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