Identify resistor values quickly with our graphical color code calculator. Select the colors on your resistor to see its resistance, multiplier, tolerance, and temperature coefficient (for 6-band resistors).
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Resistor Color Code Calculator
Decode resistor color bands to find resistance and tolerance values. Supports 4, 5, and 6 band resistors. Fast, free, and 100% private browser tool.
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About Resistor Color Code Calculator
1
Select Bands
Pick the colors that match your physical resistor.
2
Set System
Choose between 4-band or 5-band color standards.
3
View Resistance
See the value in Ohms with precise tolerance feedback.
Key Features
Visual Interface
Click bands to match your resistor.
Multi-Band Support
4, 5, and 6 band modes.
Standard Colors
IEC standard color codes.
Frequently Asked Questions
Read the bands from left (closest to end) to right. The last band is usually tolerance.
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