Resistor Color Decoder
Free resistor color code decoder. Enter color names to decode resistor values. Supports 4-band and 5-band resistors.
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About Resistor Color Decoder
Resistor Color Decoder is a free online tool that reads resistor color bands and decodes the resistance value. Supports both 4-band and 5-band resistors with automatic identification, providing complete parameters including resistance, tolerance, and temperature coefficient ā a handy companion for electronics engineers and DIY hobbyists.
Resistor Color Decoder in 3 steps
- Enter the first band color in "Band 1" (e.g., red)
- Enter the second band color in "Band 2" (e.g., black)
- Enter the multiplier color in "Multiplier" and click "Calculate"
Is this tool accurate?
Results are computed with standard, industry-accepted formulas for Band 1 and Band 2 calculations.
Do I need to download anything?
No, it runs entirely in your browser. No downloads needed.