Best Voltage Drop Calculators Apps

209+ iOS apps curated and reviewed

4.4 avg rating
16 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our voltage drop calculators list covers 209+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Voltage Drop Calculators

Southwire® Voltage Drop Calc#1

Southwire® Voltage Drop Calc by Southwire Company

Southwire Calculator
Editor's Choice
🔧 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
Voltage Drop Calculator.#2

Voltage Drop Calculator. by V PUGAZHENTHI

Wire Size, NEC & IEC Tools
Strong Contender
🔧 Utilities
4.6(411 ratings)
FreeAdsIn-App Purchases
Voltage Drop Calculator. screenshot 1
Voltage Drop Calculator. screenshot 2
Voltage Drop Calculator. screenshot 3
Voltage Drop Calculator. screenshot 4
Voltage Drop Calculator. screenshot 5
Voltage Drop Calculator. screenshot 6

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.

Voltage Drop Calculators#3

Voltage Drop Calculators by Kantaben Gorasiya

Voltage Drop Calculations
Worth Considering
📊 Productivity
3.0(2 ratings)
$3.99
Voltage Drop Calculators screenshot 1
Voltage Drop Calculators screenshot 2
Voltage Drop Calculators screenshot 3
Voltage Drop Calculators screenshot 4
Voltage Drop Calculators screenshot 5

This tool helps electrical professionals and students perform quick and accurate voltage drop calculations. It features a user-friendly interface, a material database, and the ability to save circuit details for efficient system design and compliance.

More Voltage Drop Calculators apps to explore

4
WCW Voltage Drop Calculator
WCW Voltage Drop Calculator
WCW Voltage Drop Calculator
Windy City Wire
Free

Calculate electrical circuit voltage drop quickly and accurately. Input circuit details like conductor material, wire size, voltage, phase, length, and load to determine voltage drop, percentage drop, and end-circuit voltage for efficient and safe installations.

Calculate voltage dropDetermine percentage voltage dropCalculate voltage at end of circuit
🔧 Utilities
(2)
free
5
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
by Prysmian S.p.A.
Free

Calculate maximum circuit distance and minimum conductor size for required voltage drop. Designed for electrical professionals, it provides detailed information on conductor size, voltage loss, and amperage based on NEC standards.

Calculate Maximum Circuit DistanceDetermine Minimum Conductor SizeView Actual Voltage Loss
📊 Productivity
(6)
free
6
WireSizer - DC Voltage Drop
WireSizer - DC Voltage Drop
WireSizer - DC Voltage Drop
DC Wire Size Calculator
$4.99

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.

Instant DC wire size calculationVoltage drop percentage selectionAmpacity limit checks
🔧 Utilities
(224)
paid
7
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
8
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
9
Voltage Drop & Wire Size
Voltage Drop & Wire Size
Voltage Drop & Wire Size
NEC, Metric & Ampacity
Free
🔧 Utilities
(0)
10
FieldCalc - Voltage Drop Lite
FieldCalc - Voltage Drop Lite
FieldCalc - Voltage Drop Lite
Electrician Voltage Calculator
Free
🔧 Utilities
(0)
11
Ampero Electrical Calculator
Ampero Electrical Calculator
Ampero Electrical Calculator
Cable Sizing, Voltage Drop
Free
🔧 Utilities
(0)
12
ElectriCalc: NEC Calculator
ElectriCalc: NEC Calculator
ElectriCalc: NEC Calculator
Wire Size, Voltage Drop, AWG
Free

This app provides a suite of electrical calculation tools for professionals, offering NEC-compliant solutions for wire sizing, voltage drop, and more. It works offline and allows for PDF export of results with custom branding.

NEC-compliant electrical calculatorsOffline functionalityVoltage drop calculations
🔧 Utilities
(4)
free with in-app purchases
13
SIMpull 600V Calculator
SIMpull 600V Calculator
SIMpull 600V Calculator
Southwire Calculator
Free

This app offers multiple calculators for electrical calculations, all linked by wire pull characteristics. It generates NEC® compliant answers for voltage drop, ground wire sizing, ampacity adjustments, and more. Results can be easily emailed.

Voltage Drop CalculatorGround Wire SizingAmpacity Adjustments
🔍 Reference
(57)
free
14
Electrical Calculator
Electrical Calculator
Electrical Calculator
Electrical Tools & Formulas
$3.99

This app provides over 65 essential electrical calculation tools and formulas for engineers, students, and professionals. It supports both USCS and SI units and includes features like resistor color code conversion and upgraded voltage drop calculations aligned with industry standards.

Over 65 electrical calculation toolsResistor color code calculatorsUpgraded voltage drop calculations
🔧 Utilities
(462)
free
15
Conduit Fill: NEC Calculator
Conduit Fill: NEC Calculator
Conduit Fill: NEC Calculator
Voltage Drop, Wire & Box Fill
Free

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.

16 NEC calculatorsNEC year-aware (2017-2026)Inspector citations on results
🔧 Utilities
(3)
free with in-app purchases
16
Voltage Drop Pro
Voltage Drop Pro
Voltage Drop Pro
by Snappy Appz Inc.
$3.99
🔧 Utilities
(0)
17
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
18
The Voltage Drop Calc
The Voltage Drop Calc
The Voltage Drop Calc
Voltage Drop Calulator & Tools
Free
🔍 Reference
(0)
19
VDrop
VDrop
VDrop
600V and Less
Free

This utility calculates voltage drop for electrical systems up to 600V. It provides detailed calculation outputs to help users verify results and build confidence in their electrical work. Custom voltage inputs are supported.

Voltage drop calculationsSupports up to 600VCustom voltage input
🔧 Utilities
(3)
free
20
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