Best The Ohms Law Calc Apps

187+ iOS apps curated and reviewed

4.4 avg rating
13 free apps
Updated June 2026

Out of 187+ the ohms law calc apps on iOS, 13 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for The Ohms Law Calc

Ohm's Law Calculator#3

Ohm's Law Calculator by Phan Nhat Đang

Power, Volts, Amps, Ohm : Calc
Worth Considering
🔧 Utilities
5.0(2 ratings)
FreeAdsIn-App Purchases
Ohm's Law Calculator screenshot 1
Ohm's Law Calculator screenshot 2

Easily calculate electrical values like voltage, current, resistance, and power. Input any two known values, and the app will automatically compute the rest. Supports various units for precise calculations.

More The Ohms Law Calc apps to explore

4
Ohm Law Calculator
Ohm Law Calculator
Ohm Law Calculator
Amps Ohms Watts Volts Calc
$2.99

Calculate electrical values like current, voltage, resistance, and power using Ohm's Law. Input any two known values to automatically determine the missing one. Ideal for electrical enthusiasts and professionals.

Calculate current, voltage, resistance, and powerInput any two known valuesAutomatic calculation of missing factor
🔧 Utilities
(4)
paid
5
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
6
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistor bands, Watt & Ohm Law
Free

Instantly calculate resistor resistance values from color codes (3-6 bands). Includes Ohm's Law and Watt's Law calculators for voltage, current, and power. Ideal for electronics enthusiasts and professionals.

Decode resistor color codesSupports 3-6 band resistorsOhm's Law calculator
🔧 Utilities
(10)
free with in-app purchases
7
Ugly's Electrical References
Ugly's Electrical References
Ugly's Electrical References
by Informed Publishing
$12.99

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

NEC 2026 updatesMathematical formulas and calculatorsConduit bending guide with videos
📊 Productivity
(1.5K)
paid
8
Ohmulator
Ohmulator
Ohmulator
Ohm's Law Calculator
$0.99

This electric circuit calculator simplifies Ohm's Law calculations. It allows users to input two known variables (current, resistance, voltage, or power) and automatically computes the unknown values. The app also supports on-the-fly unit adjustments, eliminating the need for manual conversions.

Ohm's Law calculationsCalculate unknown variablesAdjustable unit types
🔧 Utilities
(74)
free
9
Ohm's Law: Circuit Calculator
Ohm's Law: Circuit Calculator
Ohm's Law: Circuit Calculator
Electrical Calculator & Solver
Free

This app simplifies electrical calculations by accurately computing voltage, current, resistance, and power. It offers a user-friendly interface and step-by-step explanations, making it ideal for students, engineers, and electricians to solve circuit problems efficiently.

Voltage calculationCurrent calculationResistance calculation
🔧 Utilities
(1)
ad-supported
10
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
🔧 Utilities
(256)
free with in-app purchases
11
Electronics docs & calcs
Electronics docs & calcs
Electronics docs & calcs
Electronics lab in your pocket
Free

This app serves as a pocket-sized electronics lab, offering a comprehensive reference for components and circuits. It simplifies complex calculations for filters, inductors, and various circuit configurations, aiding both engineers and hobbyists in their design processes.

Electronic component referenceElectronic circuit referenceFilter design calculators
📚 Education
(13)
free
12
Ohm & Watt Law Electrical Calc
Ohm & Watt Law Electrical Calc
Ohm & Watt Law Electrical Calc
Volt,Current,Power,Resistance
Free

This utility app quickly calculates voltage, current, resistance, and power using Ohm's and Watt's laws. It's designed for electricians, engineers, and students, offering instant, accurate results with a simple interface. Works offline and is ideal for field calculations or exam preparation.

Calculate Voltage, Current, Resistance, PowerSupports Ohm's Law & Watt's LawBeginner-friendly interface
🔧 Utilities
(49)
free with in-app purchases
13
PIER: Ohm's Law Calculator
PIER: Ohm's Law Calculator
PIER: Ohm's Law Calculator
Electrical Reference App
$1.99

This app simplifies electrical calculations for voltage, current, resistance, and power. It features an interactive Ohm's Law wheel to aid learning and provides both simplified and precise answer values with copy functionality. A metric toolbar helps manage prefixes efficiently.

Ohm's Law wheel for formula learningCalculate voltage, current, resistance, and powerSimplified and precise answer display
🔧 Utilities
(3)
paid
14
Electrical Code-A-Day
Electrical Code-A-Day
Electrical Code-A-Day
Quiz for Electricians
Free

Test your electrical knowledge daily with a new question based on the US electrical code. Perfect for apprentices, journeymen, and masters seeking to learn or refresh their understanding of electrical concepts and regulations.

Daily electrical code questionsQuestions written by a real electricianCovers a wide range of electrical topics
📊 Productivity
(8.6K)
free
15
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
16
Audiofile Calc — LUFS, dB, Hz
Audiofile Calc — LUFS, dB, Hz
Audiofile Calc — LUFS, dB, Hz
by Audiofile Engineering, LLC
Free

This app provides a comprehensive suite of audio engineering calculators for musicians and producers. It offers free tools for length, pitch, timecode, electric, acoustics, and file size calculations, with an optional Pro tier for advanced features like LUFS targeting and batch conversion.

Length calculationsPitch calculationsTimecode conversions
🎵 Music
(13)
free with in-app purchases
17
ibOhm's Law - Calculator
ibOhm's Law - Calculator
ibOhm's Law - Calculator
Electric Power Finder
Free
🔧 Utilities
(0)
18
Simple Circuit Builder
Simple Circuit Builder
Simple Circuit Builder
Electrical Learning Tool
Free

This virtual lab offers a hands-on experience for learning about resistors and circuit resistance. Easily build and test series and parallel circuits, measure voltage and current, and understand the impact of component changes in real-time.

Build circuits with up to eight componentsFive component typesVirtual volt and amp meters
🔧 Utilities
(28)
free
19
Electrician's Helper
Electrician's Helper
Electrician's Helper
by Sam Virgillo
$12.99

This app simplifies electrical work by providing quick access to electrical codes and performing complex calculations for installations. It helps electricians find conductor ampacity, calculate voltage drop, determine box fill, and size raceways, among many other essential functions.

3 phase delta and wye circuit calculationsConductor ampacity lookup (NEC/CEC)Voltage drop calculation
📊 Productivity
(13)
paid
20
Fault Current Calculator
Fault Current Calculator
Fault Current Calculator
by Cooper Bussmann, LLC
Free

This tool helps contractors, engineers, and electricians quickly calculate available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for various circuits and can generate labels for service equipment.

Calculate available fault currentSize fuses and conductorsGenerate service equipment labels
🔧 Utilities
(23)
freemium

Related searches