The table below shows the numeric values which may correspond to a colour band on a resistor. Note that the actual meaning of a band depends on its position (see information below the table).

Colour Value Multiplier Tolerance Temperature coefficient
Silver 0.01 10-2 ± 10%
Gold 0.1 10-1 ± 5%
Black 0 1 100
Brown 1 10 101 ± 1% 100
Red 2 100 102 ± 2% 50
Orange 3 1K 103 ± 3% 15
Yellow 4 10K 104 ± 4% 25
Green 5 100K 105 ± 0.5%
Blue 6 1M 106 ± 0.25% 10
Violet 7 10M 107 ± 0.1% 5
Grey 8 ± 0.05%
White 9 ± 1%

Band position

The position of a colour band determines whether it should be interpreted as a value, a multiplier, a tolerance, or a temperature coefficient. Typically, you will see a group of 3 or 4 bands towards one end of the resistor. This is value/multiplier group, and should be at the left-hand side.

Counting left to right, lookup the band meanings in this table, based on the total number of bands on the resistor:

Num. of bands 1st band 2nd band 3rd band 4th band 5th band 6th band
4 Value Value Multiplier Tolerance
5 Value Value Value Multiplier Tolerance
6 Value Value Value Multiplier Tolerance Temperature coefficient

Calculating the value

The value bands represent the 1st, 2nd, and (if applicable) 3rd significant digits of the resistor’s value. Combine these together and multiply by the multiplier band.

4-band example: if you have a 4-band resistor with value bands 4 (yellow) and 7 (violet), and multiplier 100 (red), the resulting value is 4700 Ohms (or 4.7 kOhms).