Resistor Decoder

Sherwanifarms

About this app

Resistor Decoder – the quick and simple resistor color code calculator.

Stop squinting at color charts. Just tap the colors you see on your resistor and Resistor Decoder instantly shows you its resistance, tolerance and temperature coefficient. Perfect for students, hobbyists, makers and electronics technicians.

SUPPORTS ALL COMMON RESISTOR TYPES
- 4-band resistors – standard through-hole resistors
- 5-band resistors – precision resistors with three significant digits
- 6-band resistors – precision resistors with temperature coefficient (ppm/K)

INSTANT, ACCURATE RESULTS
- Resistance value shown in easy-to-read units (Ω, kΩ, MΩ, GΩ)
- Tolerance percentage for every resistor
- Temperature coefficient for 6-band resistors
- Results update the moment you change a band color

EASY TO USE
- Select the band type, then pick a color for each band
- Visual color selection that matches what you see on the resistor
- Clean, modern design built with Material You
- No learning curve, no clutter

LIGHTWEIGHT AND OFFLINE
- Works fully offline – no internet connection needed
- Small app size and fast to open
- No account or sign-up required

WHO IS IT FOR?
- Electronics and engineering students
- Arduino, Raspberry Pi and DIY hobbyists
- Repair technicians and electricians
- Teachers explaining resistor color codes
- Anyone sorting a box of mixed resistors

HOW TO READ A RESISTOR
1. Hold the resistor so the tolerance band (often gold or silver) is on the right.
2. Choose 4, 5 or 6 bands in the app.
3. Tap the color of each band from left to right.
4. Read the resistance, tolerance and temperature coefficient instantly.

Whether you're building your first circuit or repairing a board, Resistor Decoder saves you time and helps you avoid mistakes.

Download Resistor Decoder now and decode any resistor in seconds!

What’s new

Enjoy the tool , No Known Bugs.