Resistor Color Code Converter
This bidirectional tool translates between color bands and resistance values. You can select colors to calculate the resistance, or type a value (e.g., 4.7k) to instantly see the required color code.
It supports 4, 5, and 6-band systems and includes an E-Series Checker to verify if your calculated resistance is a standard industry part (E24/E96).
Configuration
Live Visual
AnalysisHow to Use
Two ways to use: Select Colors or Type Value.
Option A: Read a Resistor
Hold your resistor with the tolerance band (Gold/Silver) on the right. Select the matching colors in the dropdowns to decode the value.
Option B: Find Colors
Type a value like “10k” or “4.7M” in the “Quick Find” box. The tool will automatically set the correct color bands for you.
Verify Standard Series
Check the badge below the result. Standard E24 means it’s a common part. Custom Value means it might be hard to buy.