Best apps like Box Fill Calc

10+ similar apps compared and reviewed

4.7 avg rating
9 free apps
Updated August 2026

Whether you want more options like Box Fill Calc or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Box Fill Calc

Conduit Bender Elite - Calc#1

Conduit Bender Elite - Calc by Cyberprodigy LLC

Calculator for Electricians
Editor's Choice
🔧 Utilities
4.8😊(1.7K ratings)
$7.99In-App Purchases
#30in Utilities
Conduit Bender Elite - Calc screenshot 1
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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
Kopperfield#2

Kopperfield by Kopperfield

Load calcs, NEC help, and more
Strong Contender
🔧 Utilities
3.9(9 ratings)
Free
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Streamline electrical design and permitting with powerful tools for load calculations, panel schedules, and single-line diagrams. Quickly reference the National Electrical Code with an AI-powered chatbot and generate instant PDF reports for inspectors and clients.

NEC Box & Conduit Calc#3

NEC Box & Conduit Calc by V PUGAZHENTHI

NEC Tools for Electricians
Worth Considering
🔧 Utilities
4.9(18 ratings)
FreeAdsIn-App Purchases
NEC Box & Conduit Calc screenshot 1
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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.

More apps like Box Fill Calc

4
ElectriCalc Pro
ElectriCalc Pro
ElectriCalc Pro
Electrician NEC Calculator
Free
$29.99 | 100% OFF

This app provides electricians and electrical professionals with a powerful tool for performing complex calculations based on the latest National Electrical Code (NEC). It offers solutions for wire sizing, voltage drop, conduit sizing, and motor calculations, saving time and ensuring code compliance.

NEC compliant calculationsWire and conduit sizingVoltage drop calculations
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5
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
6
Electrical Calculator lite
Electrical Calculator lite
Electrical Calculator lite
60 Calculators & 16 Converters
Free

This comprehensive tool offers over 60 calculators and 16 converters for electrical engineering, wiring, and circuit analysis. It supports engineers, electricians, students, and hobbyists with calculations ranging from basic Ohm's Law to complex RLC circuits and power conversions.

60+ Electrical Calculators16 Electrical Unit ConvertersOhm's Law Calculations
🔧 Utilities
(573)
free with in-app purchases
7
Voltage Drop Calculator.
Voltage Drop Calculator.
Voltage Drop Calculator.
Wire Size, NEC & IEC Tools
Free

Calculate voltage drop and wire size using both NEC and IEC standards. Supports various load types, conductor materials, and system configurations. Generates detailed reports for electricians, engineers, and contractors.

NEC and IEC dual standardsVoltage drop and wire sizing calculationsSupport for continuous load and corrections
🔧 Utilities
(412)
free with in-app purchases
8
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
9
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
10
FireAlarmGuy
FireAlarmGuy
FireAlarmGuy
Essential tools for techs
Free
$0.99 | 100% OFF

This utility app provides two essential tools for fire alarm technicians. It features a calculator for determining DMX dip switch settings and a decoder for understanding battery manufacturing date codes, streamlining fieldwork.

DMX Dip Switch CalculatorBattery Date Code DecoderDevice addressing assistance
🔧 Utilities
(2)
free