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Resistor Color Code Calculator

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate resistor color code or resistance color bands of 4-band resistors.

Get color bands for resistor


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Resistance value calculator from color bands

Resistor Color Codification

A 4-band resistor has two significant digit bands, one multiplier band and a optional fourth band for tolerance from left to right. To distinguish left from right there is a gap between the third and fourth color bands. The full color code chart can be found here.

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