Reading the resistor from left to right, the first two color bands represent significant digits, the third band represents the decimal multiplier, and the fourth band represents the tolerance. Use our 4 Band Resistor Color Code Calculator online tool to calculate the information for color banded axial lead resistors of 4 band. Select the number of bands, then their colors to determine the value and tolerance of the resistors.

The number of bands is important because the decoding changes based upon the number of color bands. For the 4 band resistor:

Band 1 – First significant digit

Band 2 – Second significant digit

Band 3 – Multiplier

Band 4 – Tolerance

Resistance = (First Significant Digit . Second Significant Digit) * Multiplier ± Tolerance %

First Digit | Second Digit | Multiplier | Tolerance | Color |
---|---|---|---|---|

0 | 0 zero | Black | ||

1 | 1 | 1 zero | Brown | |

2 | 2 | 2 zero | 2 % | Red |

3 | 3 | 3 zero | Orange | |

4 | 4 | 4 zero | Yellow | |

5 | 5 | 5 zero | Green | |

6 | 6 | 6 zero | Blue | |

7 | 7 | 7 zero | Violet | |

8 | 8 | na | Grey | |

9 | 9 | na | White | |

x 0.1 | 5% Gold | |||

x 0.01 | 10% Silver |