Often you need to read resistor value that is color coded. You can do it by finding color values in table or you can do it easy way by using automated online resistor color code value calculator below. Depending on resistor tolerance and production technique, it can have four or five color code. Carbon film resistors usually have 5% tolerance and 4 colors code, while more precise metal film resistors have 1% tolerance and 5 colors code mark.

Depending on resistor type, whose value you need to read, choose appropriate graphic animated calculator below:

4 color code calculator                      5 color code calculator

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