4 Band Resistor Calculator
A resistor is a perhaps the most common building block used in circuits. Resistors come in many shapes and sizes this tool is used to decode information for color banded axial lead resistors.
4 Band Description
The number of bands is important because the decoding changes based upon the number of color bands. There are three common types: 4 band, 5 band, and 6 band resistors. For the 4 band resistor:
Band 1 – First significant digit.
Band 2 – Second significant digit
Band 3 – Multiplier
Band 4 – Tolerance
To aid in calculating the values of resistors you can use our 4 band resistor calculator or from the resistor colour chart table below. The 4 band resistor calculator is bar far easier and quicker.
4 band resistor calculator
Resistor colour chart
| Colour | 1st Band | 2nd Band | 3rd Band (Multiplier) | 4th Band (Tolerance) |
| Black | 0 | 0 | x100 | |
| Brown | 1 | 1 | x101 | 1% |
| Red | 2 | 2 | x102 | 2% |
| Orange | 3 | 3 | x103 | |
| Yellow | 4 | 4 | x104 | |
| Green | 5 | 5 | x105 | |
| Blue | 6 | 6 | x106 | |
| Violet | 7 | 7 | x107 | |
| Gray | 8 | 8 | x108 | |
| White | 9 | 9 | x109 | |
| Gold | 5% | |||
| Silver | 10% |
