# Resistor Colour Codes

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 10-2 = 0.01 ± 10%
Gold 10-1 = 0.1 ± 5%
Black 0 100 = 1
Brown 1 101 = 10 ± 1% 100
Red 2 102 = 100 ± 2% 50
Orange 3 103 = 1,000 ± 3% 15
Yellow 4 104 = 10,000 ± 4% 25
Green 5 105 = 100,000 ± 0.5%
Blue 6 106 = 1,000,000 ± 0.25% 10
Violet 7 107 = 10,000,000 ± 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).