Resistor Color Code Calculator
This calculator decodes the color bands found on axial-lead resistors, converting the visual code into precise ohmic values and vice versa.
Use this tool to:
- Identify unknown resistors instantly from your spare parts bin without needing a multimeter.
- Verify tolerance limits to determine the minimum and maximum resistance values for high-precision timing or voltage divider circuits.
- Switch between 4-band and 5-band modes to support both standard carbon film and high-precision metal film resistors.
Select Color Bands
Calculated Resistance
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