Best Voltage Drop Calculators Apps

209+ iOS apps curated and reviewed

4.5 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😐(1.4K 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 right wire size for your electrical circuit with this voltage drop calculator. Ensure proper conductivity while meeting specific voltage drop limits and NEC ampacity standards. Perfect for AWG and KCMIL sizes in various applications.

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 Voltage Drop Calculators apps to explore

4
WCW Voltage Drop Calculator
WCW Voltage Drop Calculator
WCW Voltage Drop Calculator
Windy City Wire
Free
🔧 Utilities
(2)
5
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
by Prysmian S.p.A.
Free

This tool helps electrical professionals quickly calculate maximum circuit distance and minimum conductor size for a required voltage drop, providing essential details like actual voltage loss and maximum amps. Try it out to easily determine conductor sizes and circuit distances based on NEC codes and conductor types.

📊 Productivity
(6)
6
WireSizer - DC Voltage Drop
WireSizer - DC Voltage Drop
WireSizer - DC Voltage Drop
DC Wire Size Calculator
$4.99

This DC Voltage Drop Calculator makes it easy to choose the right wire size for low-voltage DC systems, providing fast, accurate, and intuitive calculations for professionals and DIY enthusiasts alike. Simply input your circuit details and instantly see the correct wire gauge for your desired voltage drop, ensuring safe and efficient electrical connections.

🔧 Utilities
(224)
7
AWG Calculator: Wire Size
AWG Calculator: Wire Size
AWG Calculator: Wire Size
Electrician Wire Tool
Free

This electrical calculation tool simplifies wire size and other calculations following NEC standards, making it ideal for professionals and DIYers. Download now and try it for free for a month to streamline your electrical design and installation work.

🔧 Utilities
(67)
8
Ohms Law Calc.
Ohms Law Calc.
Ohms Law Calc.
Wire Size & Voltage Drop
Free

Ohms Law Calc. is a comprehensive app featuring 62 electrical calculators and formulas for various calculations such as voltage, current, resistance, and power. Explore a wide range of tools including voltage drop, power factor, transformer calculator, and more!

🔧 Utilities
(1.3K)
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
🔧 Utilities
(2)
13
SIMpull 600V Calculator
SIMpull 600V Calculator
SIMpull 600V Calculator
Southwire Calculator
Free

This application provides multiple calculators for electrical wire pull characteristics, generating NEC-compliant answers for voltage drop, wire sizing, and more. It helps users perform calculations and easily share results.

🔍 Reference
(57)
14
Electrical Calculator
Electrical Calculator
Electrical Calculator
Electrical Tools & Formulas
$3.99

This all-in-one electrical calculation app provides over 65 tools and formulas for electrical and electronics engineers, students, and professionals, covering a wide range of calculations from voltage and current to power and energy. With flexible unit selection and a simple interface, it enables fast and accurate calculations, supporting both USCS and SI units, and is a valuable resource for anyone working with electrical systems.

🔧 Utilities
(462)
15
Conduit Fill: NEC Calculator
Conduit Fill: NEC Calculator
Conduit Fill: NEC Calculator
Voltage Drop, Wire & Box Fill
Free
🔧 Utilities
(3)
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 application helps electricians, engineers, and contractors quickly determine the proper conduit size to use based on NEC guidelines, including fill percentages and jam probability. Simply input conduit type, size, and conductors, and the app will calculate the conduit fill percentage for you.

🔧 Utilities
(746)
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 voltage drop calculator helps users perform due diligence and develop confidence in their results by providing detailed calculations for voltages 600V and less. Users can input custom voltages within this range to get accurate outputs.

🔧 Utilities
(3)
20
Electrical Calculator lite
Electrical Calculator lite
Electrical Calculator lite
60 Calculators & 16 Converters
Free
🔧 Utilities
(565)