Resistor Color Code Calculator

BrainTile Studio

Contains ads

About this app

Decode the value of any resistor in seconds by selecting its color bands.
Whether you work with Arduino, Raspberry Pi, breadboard projects, or repair electronics, this app gives you a fast and reliable way to read resistor color codes - no calculation, no lookup tables, no guesswork.
Perfect for makers, hobbyists, electronics engineers, technicians, and students learning electronics for the first time.

Key Features
- Supports 4-band and 5-band resistors
- Tap the color rings to instantly see the resistance value in ohms
- Includes tolerance values
- Clean, distraction-free interface
- Works completely offline
- Based on the industry-standard EIA color code

Whether you're building a circuit, debugging a project, or studying for an exam, the Resistor Color Code Calculator makes reading resistor values effortless.

Download now and keep a complete color code reference in your pocket.

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.

overall good. just pointless ads

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

- Faster app startup
- Improved layout on all screen sizes
- Android 15 edge-to-edge display support
- Updated to Android SDK 36