Best The Ohms Law Calculator Apps

200+ iOS apps curated and reviewed

4.5 avg rating
13 free apps
Updated June 2026

Looking for free the ohms law calculator apps? 13 of our 200+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for The Ohms Law Calculator

Calculator·#2

Calculator· by Tim O's Studios, LLC

Big Basic Calculator
Strong Contender
🔧 Utilities
4.9😊(33K ratings)
FreeAdsIn-App Purchases
Calculator· screenshot 1
Calculator· screenshot 2
Calculator· screenshot 3
Calculator· screenshot 4
Calculator· screenshot 5

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Quick and responsive
  • 💡 Percentage function works well
  • 👍 Large, clear buttons

Room to Improve

  • 🔋 Frequent ads can be distracting
  • 🐛 Occasional crashes or freezes
  • 🔒 Lack of customization options
Ohm's Law: Circuit Calculator#3

Ohm's Law: Circuit Calculator by Muhammad Awais Younas

Electrical Calculator & Solver
Worth Considering
🔧 Utilities
5.0(1 ratings)
FreeAds
Ohm's Law: Circuit Calculator screenshot 1
Ohm's Law: Circuit Calculator screenshot 2
Ohm's Law: Circuit Calculator screenshot 3
Ohm's Law: Circuit Calculator screenshot 4

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.

More The Ohms Law Calculator apps to explore

4
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
💰 Finance
(23K)
free with in-app purchases
5
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
6
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
7
The Ohms Law Calc
The Ohms Law Calc
The Ohms Law Calc
Simple Ohms Law Calculator
Free
🔍 Reference
(0)
8
Ohm's Law Calculator
Ohm's Law Calculator
Ohm's Law Calculator
Power, Volts, Amps, Ohm : Calc
Free

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.

Calculate Voltage, Current, Resistance, PowerAutomatic calculation of remaining valuesSupports multiple units (kV, V, mV, A, mA, Ω, kΩ, MΩ, W, kW, MW, hp, BTU/hr)
🔧 Utilities
(2)
free with in-app purchases
9
ibOhm's Law - Calculator
ibOhm's Law - Calculator
ibOhm's Law - Calculator
Electric Power Finder
Free
🔧 Utilities
(0)
10
Desmos Scientific Calculator
Desmos Scientific Calculator
Desmos Scientific Calculator
by Desmos, Inc.
Free

This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.

Basic arithmetic operationsTrigonometric functionsStatistical calculations
📚 Education
(327)
free
11
Calculator - Simple & Basic
Calculator - Simple & Basic
Calculator - Simple & Basic
by The App Tower Inc.
Free

This utility app offers a straightforward calculation experience with a vast selection of over 80 customizable themes. Personalize your calculator's appearance to suit your style while performing everyday math tasks.

Basic calculationsOver 80 themesTheme customization
🔧 Utilities
(146K)
free with in-app purchases
12
Graphing Calculator X84
Graphing Calculator X84
Graphing Calculator X84
Designed for use with Ti-84
Free

This app offers a free, powerful alternative to hardware graphing calculators. It supports basic to complex math, including graphing, statistics, and matrix operations, with a built-in user manual for assistance.

Graphing of functionsStatistics and regression analysisMatrix operations
📚 Education
(50K)
free with in-app purchases
13
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
14
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
15
GraphNCalc83
GraphNCalc83
GraphNCalc83
Graphing calculator
$12.99

This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.

Touch-based graphing and editingNatural textbook notation inputAdvanced math and statistical functions
📚 Education
(3.8K)
paid
16
Electronic Calculator: Amperio
Electronic Calculator: Amperio
Electronic Calculator: Amperio
Ohm Law,Resistor,Circuit Calc
Free
$3.99 | 100% OFF

This app provides instant, accurate calculations for electronics students and engineers. It includes tools for Ohm's Law, resistor color codes, voltage dividers, and unit conversions. Designed for ease of use and offline functionality, it offers a professional-grade experience without ads.

Ohm's Law CalculatorResistor Color Code DecoderVoltage Divider Calculator
🔧 Utilities
(1)
paid
17
Ohms Law Calculator - voltage
Ohms Law Calculator - voltage
Ohms Law Calculator - voltage
Ohm's Law Calculator
$1.99
🔧 Utilities
(0)
18
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
19
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
20
Resistor Code Calculator
Resistor Code Calculator
Resistor Code Calculator
by Vivid Planet Software
Free

Easily determine the resistance value of electronic components using their color bands. This reference tool supports both 4 and 5-band resistors, making it ideal for makers, engineers, and students working with electronics projects.

Calculate resistor color codesSupports 4-band resistorsSupports 5-band resistors
🔍 Reference
(27)
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