Resistor Code Calculator

BrainTile Apps

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About this app

Easily calculate resistor color codes with this intuitive and powerful reference app! Whether you're a maker, engineer, or student, this app is your perfect companion for evaluating resistor values. Whether you're tinkering with Arduino, Raspberry Pi, working in electronics, or need it for school projects, this calculator makes it effortless to decode resistor values.

With support for both 4-band and 5-band resistors, the app ensures that you're always equipped with the right tools for the job. Simply select the resistor's color bands, and the app instantly calculates the corresponding resistance value based on the industry-standard color code.

Key Features:
- Supports both 4-band and 5-band resistors.
- Perfect for hobbyists, engineers, and students alike.
- Ideal for use with Arduino, Raspberry Pi, and other microcontroller projects.
- Quick, accurate, and easy to use — great for learning or as a reference tool.
- Based on the industry-standard resistor color code, used across all electronics.

Download now and make resistor value calculation easier than ever!

Ratings and reviews

Exactly what it says on the tin. Punch in the band colors, get the resistance and tolerance. Ad is small and out of the way, just how it should be. Wish it had a min/max value chart, but nothing's perfect.

For what it does this app gets 5 stars! Simplicity itself! There is a comment that the colours should carry names to assist users afflicted with colour blindness but that begs the question as to how a person so afflicted is going to identify the colours on a resistor in the first place. Love it....

Excellent! Too easy to handle, very simple. I loved it. Although i haven't verified all combinations, i got exactly values according to my inputs. So, it's helping me nicely.

What's new

Splash screen added and better colors for resistor bands