Resistor Color Code Calculator
How to read a resistor color code
- Choose the number of bands on the resistor.
- Pick each band's color, starting from the end the bands are closest to.
- The resistance and tolerance appear, with the drawing to compare against your resistor.
Frequently asked questions
Which end do I start from?
The end with the bands closer together. The tolerance band, often gold or silver, is usually set apart at the other end.
How are 4 and 5 band resistors different?
A 4 band resistor has two digits, a multiplier and a tolerance; a 5 band one has three digits for more precision. A 6th band gives the temperature coefficient.
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