Resistor Color Codes Chart

Resistor color code bands explained

Resistors color codes should be read from left to right, when the grouping of the rings is to the left. If it is a 5% or 10% resistor, the gold and silver ring must be to the right. The silver and gold rings are for tolerance, and they can never be the first ring.

Resistors with 3 bands are all 20% tolerance resistors and should be decoded as a 4 band resistor.

Resistors with 6 bands are special resistors with a temperature coefficient band. These are used in equipment where the resistors ability to withstand a certain temperature, is critical.

On SMD and other small resistors, the value can be given in a numerical way, like “103F”. These numbers should be decoded in the table as a 4 band resistors.

In order to write Ohm values easily in schematics, R is used for sub 1000 Ohm values, as 0R1 = 0.1 Ohm. K is kilo and is used for thousands as in 4K7 = 4700 Ohm. M is mega and is used for millions as in 10M = 10000000 Ohm.

Resistor values table

Color1st band2nd band3rd bandMultiplierTolerance
Black0001 Ω
Brown11110 Ω1% (F)
Red222100 Ω2% (G)
Orange3331 KΩ
Yellow44410 KΩ
Green555100 KΩ0.5% (D)
Blue6661 MΩ0.25% (C)
Violet77710 MΩ0.1% (B)
Grey8880.05%
White999
Gold0.1 Ω5% (J)
Silver0.01 Ω10% (K)
First band, second band, third band, forth band, fifth band and sixth band

It can also be a good idea to use a resistor color code calculator, to get the correct values for a band resistor. If you are designing a electronic circuit that uses transistors, you might be interested in using the transistor base resistor calculator.

Published September 24, 2013. Updated November 1, 2021.

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