Best Dc Power Cable Size Calc Apps

200+ iOS apps curated and reviewed

4.4 avg rating
15 free apps
Updated May 2026

Every iPhone needs a few good dc power cable size calc apps. We benchmark 200+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Dc Power Cable Size Calc

DC Power Cable Size Calc#1

DC Power Cable Size Calc by Tan Chia Ling

DC Power System Cable Size
Editor's Choice
🔧 Utilities
2.7(3 ratings)
$2.99
DC Power Cable Size Calc screenshot 1
DC Power Cable Size Calc screenshot 2
DC Power Cable Size Calc screenshot 3
DC Power Cable Size Calc screenshot 4
DC Power Cable Size Calc screenshot 5
DC Power Cable Size Calc screenshot 6

This utility calculates the appropriate wire gauge for DC power systems based on length, voltage, and current. It helps prevent voltage drops, overheating, and wasted energy by ensuring correct cable sizing for applications like solar panels and battery systems.

WireSizer - DC Voltage Drop#2

WireSizer - DC Voltage Drop by Juggernaut Technology, Inc.

DC Wire Size Calculator
Strong Contender
🔧 Utilities
4.5(224 ratings)
$4.99
WireSizer - DC Voltage Drop screenshot 1
WireSizer - DC Voltage Drop screenshot 2
WireSizer - DC Voltage Drop screenshot 3
WireSizer - DC Voltage Drop screenshot 4
WireSizer - DC Voltage Drop screenshot 5
WireSizer - DC Voltage Drop screenshot 6

This app quickly calculates the correct DC wire gauge needed for any circuit. Simply input voltage, current, and length to determine the optimal wire size, considering voltage drop and ampacity limits. It's suitable for various DC systems up to 60 VDC.

Southwire® Voltage Drop Calc#3

Southwire® Voltage Drop Calc by Southwire Company

Southwire Calculator
Worth Considering
🔧 Utilities
4.6😐(1.5K ratings)
Free
Southwire® Voltage Drop Calc screenshot 1
Southwire® Voltage Drop Calc screenshot 2
Southwire® Voltage Drop Calc screenshot 3
Southwire® Voltage Drop Calc screenshot 4
Southwire® Voltage Drop Calc screenshot 5
Southwire® Voltage Drop Calc screenshot 6

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.

What We Love

  • 🚀 Quick and useful
  • 🚀 Great Quick Reference
  • 👍 A must have app for electricians
  • 👍 Love These

Room to Improve

  • 🐛 Motor starting Voltage drop
  • 🐛 Useless!
  • 🐛 Won't work

More Dc Power Cable Size Calc apps to explore

4
Ohms Law Calc.
Ohms Law Calc.
Ohms Law Calc.
Wire Size & Voltage Drop
Free

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

Ohm's Law calculationsVoltage drop calculatorWire size calculator
🔧 Utilities
(1.3K)
free with in-app purchases
5
Cable Calc+
Cable Calc+
Cable Calc+
by Megger LTD
Free

This tool assists electrical contractors by calculating cable selection and voltage drop for installations up to 25KW and 100A. It supports various cable types and includes reference methods, educational videos, and a guide to electrical test instruments.

Cable selection calculatorVoltage drop calculatorSupports various cable types (SWA, Fire proof, Tri rated, Twin and earth)
🔧 Utilities
(2)
free
6
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
by Southwire Company
Free

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.

Conduit size calculationNEC fill percentagesJam probability
🔧 Utilities
(746)
free
7
Pump Cable Calculator
Pump Cable Calculator
Pump Cable Calculator
Southwire®
Free

This app helps determine the correct wire size or installation length for pump cables, adhering to NEC® guidelines. It supports various installation methods for electrical projects.

Wire size calculationInstallation length calculationSupports various installation methods
🔍 Reference
(6)
free
8
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
(411)
free with in-app purchases
9
Cable Size Calculator
Cable Size Calculator
Cable Size Calculator
by Unique Computer Systems LLC
Free

This tool helps electrical professionals quickly determine the correct cable sizes for electric circuits. It calculates voltage drop and supports various cable types, working offline for convenience on job sites.

Offline operationVoltage drop calculationSupports copper and aluminum cables
📊 Productivity
(2)
free
10
Transmission Line Calc
Transmission Line Calc
Transmission Line Calc
RF transmission line calc
$2.99

Calculate RF transmission line parameters like impedance, attenuation, and SWR. Supports over 50 cable types, allowing input of length, frequency, and power to determine output.

Calculate characteristic impedance and velocity factorDetermine attenuation and electrical lengthCalculate impedance at the other end
🔍 Reference
(8)
paid
11
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
12
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
13
CommScope Cable Tech Guide
CommScope Cable Tech Guide
CommScope Cable Tech Guide
by CommScope, Inc.
Free

This app serves as a digital pocket guide for cable technicians and installation engineers. It offers comprehensive information on safety, RF data, troubleshooting, and various cable components, along with built-in calculators for common technical calculations.

Safety informationRF data and calculationsMaintenance and troubleshooting
📚 Education
(19)
free
14
VFD Cable Sizing Calc
VFD Cable Sizing Calc
VFD Cable Sizing Calc
by Southwire Company
Free
🔧 Utilities
(0)
15
Electrical Calculator Plus
Electrical Calculator Plus
Electrical Calculator Plus
by Inch Calculator
Free

This app offers a comprehensive suite of 26 electrical and electronics calculators and converters. It helps users compute various electrical properties, including Ohm's Law, current, power, voltage, and resistance. It also features tools for wire ampacity, voltage drop, and LED resistor calculations.

26 electrical calculatorsOhm's Law calculatorCurrent and power calculators (DC/AC)
🔧 Utilities
(15)
ad-supported
16
OHMs Law Calc
OHMs Law Calc
OHMs Law Calc
by Jonathan Mellen
$1.99

This tool calculates Ohm's Law for single and three-phase applications using vector calculations for balanced and unbalanced loads. It quickly determines Watts, Volts, Amps, or Ohms, and can back-calculate load resistance. Widget support is included.

Single and three-phase calculationsVector calculations for unbalanced loadsCalculate Watts, Volts, Amps, or Ohms
🔍 Reference
(0)
paid
17
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
18
Cable Calculator
Cable Calculator
Cable Calculator
The Faber cable calculator app
Free
💼 Business
(0)
19
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
(565)
free with in-app purchases
20
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