Resistor Color Code Calculator

Identify resistor values from color bands.

Resistor Color Code Calculator

Band 1

Band 2

Multiplier

Tolerance

Select colors to calculate resistance

What is Resistor Color Code Calculator?

A resistor calculator helps identifying the resistance value and tolerance of through-hole resistors using the standard color code bands.

How to Use Resistor Color Code Calculator?

Select the number of bands (4 or 5) and choose the colors corresponding to your resistor. The value and tolerance will be displayed instantly.

Resistor Color Code Calculator Accuracy

The calculator follows the international IEC 60062 standard for resistor color codes.

Frequently Asked Questions

Read from the end where the color bands are clustered together. If there is a gold or silver band, it's the tolerance band and should be on the right side.