Resistor Colour Code Calculator

This calculator converts the colour bands which are found on resistors into their values.

colour codes

1st Digit

2nd Digit

3rd Digit

Multiplier

Tolerance

Temperature Coefficient

Resistance = n/a

Tolerance = n/a

Temperature Coefficient = n/a

Prefered Resistor Values

Resistors are available in a number of standard (Prefered) ranges or series and these are: E3, E6, E12, E24, E48 and E96. The E denotes the number of values the series contains per decade.

Resistor Colour Code Calculator

Resistance = n/a

Tolerance = n/a

Temperature Coefficient = n/a

Prefered Resistor Values

E3: 50% tolerance

E6: 20% tolerance

E12: 10% tolerance

E24: 5% tolerance

E48: 2% tolerance

E96: 1% tolerance