Resistor Colour Code Calculator

   

Ist
band
2nd
band
3rd
band
4th
band
Enter band colours on the left to see its resistance value below


Resistor Value = Resistor Accuracy =

Try the example resistor below
(check its value in the calculator)

     1st  band blue = 6
     2nd band grey = 8
     3rd  band red = 2 = number of zeros (00)
     4th  band gold = + or - 5 % accuracy

 

The resistance value = 6800 ohms = 6.8K ohms
{blue "6" grey "8" red "00"}

with a plus or minus 5% accuracy or tolerance.
{gold "+ or - 5%"}

Remember: by using the unit "K ohms" and "M ohms" you can reduce the number of 0's you need to write:
(1K ohm = 1000 ohms and 1M ohm = 1000000 ohms).