Learn electrical troubleshooting skills using a virtual voltmeter. Solve circuit problems with the fewest tries and shortest time to earn a "5 Star Troubleshooter" certification.



10+ similar apps compared and reviewed
Resistance Calculator is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.



Learn electrical troubleshooting skills using a virtual voltmeter. Solve circuit problems with the fewest tries and shortest time to earn a "5 Star Troubleshooter" certification.




Calculate equivalent resistance for any resistor circuit. This tool is designed for students, technicians, and engineers, offering high accuracy for voltage, current, and resistance. It's a great way to check homework and perform engineering calculations.








Instantly decode resistor color bands, calculate exact values, and convert SMD resistor markings. This app provides essential tools for electronics students, technicians, and hobbyists with a clean interface and fast processing.


This application simplifies electrical series calculations for resistance, inductance, and capacitance. It supports multiple units for flexible input and output, making complex computations quick and effortless for users.




This utility app provides a suite of tools for calculating and determining resistor values. It assists hobbyists and engineers with series, parallel, and voltage divider calculations, as well as inverting amplifier gain.


Quickly calculate resistor values from color bands or SMD codes, and vice versa. This tool is ideal for electronics enthusiasts, students, and DIYers working with 4, 5, or 6-band resistors and various SMD codes. It functions offline and requires no registration.


Point your phone's camera at a resistor to instantly identify its value. Currently supports 4-band carbon film resistors with a 5% tolerance.


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.