As we know a 4 Band Resistor is a type of Fixed Resistor in through hole package with two terminals, these are commonly used in electronic circuits to limit the current and drop the voltage level. These four band Resistor indicates its value through four different colors and their positions. 4 Color Band Resistor will have priority to calculate its value as First Band (First Numerical Digit), Second Band (Second Numerical Digit), Third Band (Multiplier) and Fourth Band (Tolerance).
To start decoding the Color of 4 band Resistor we need to identify the First or Last (Tolerance) Band, Most of these component comes with Gold or Silver Color Tolerance band that is last Band. So we need to position it to the right hand. Here the last tolerance band in right hand side. Now starting with the first color from left hand side. As previously said First Band color numerical value and Second band Color numerical value should be written down as it is. Then third band is multiplier ( 10color number ), Multiply the written numbers (First, Second digit) with the corresponding multiplier. Now we get the Resistor Value then final Last band is Tolerance band ± in percentage. Finally we get the Value of 4 band Resistor.
| Color and Value | First Band | Second Band | Multiplier | Tolerance |
|---|---|---|---|---|
| Black (0) | 0 | 0 | 1 Ω | |
| Brown (1) | 1 | 1 | 10 Ω | ±1% |
| Red (2) | 2 | 2 | 100 Ω | ±2% |
| Orange (3) | 3 | 3 | 1 kΩ | |
| Yellow (4) | 4 | 4 | 10 kΩ | |
| Green (5) | 5 | 5 | 100 kΩ | ±0.5% |
| Blue (6) | 6 | 6 | 1 MΩ | ±0.25% |
| Violet (7) | 7 | 7 | 10 MΩ | ±0.10% |
| Gray (8) | 8 | 8 | 100 MΩ | ±0.05% |
| White (9) | 9 | 9 | 1 GΩ | |
| Gold (±5%) | 0.1Ω | ±5% | ||
| Silver (±10%) | 0.01Ω | ±10% | ||
From old school method for remembering the Resistor color code, here is the simple and funny mnemonics “BB ROY Great Britain Very Good Wife Gold Silver” here the color code goes as Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, White, Gold and Silver. So the Numeric and Multiplier Number (x10color) starts from 0 to 9.
Consider you are holding a four band Resistor with color code as Red, Red, Brown and Gold.
First Band Red = 2, Second Band Red = 2, Third Band Multiplier = 1 = *101, Fourth Band Tolerance = ±5%.
22*10^1=220 Ω Ohms with ±5% Tolerance, which means your Resistor will have Resistance value between 231 Ω to 209 Ω.
Online Calculator allows for a highly customizable calculation experience while retaining all the core functionalities of the calculato.
Our 4 Band Resistor Color Code Calculator is a handy tool designed to help you easily determine the resistance value of 4-band resistors. With a user-friendly interface and accurate calculations, understanding your resistor's value is quick and straightforward.
This tool offers a range of features to simplify your resistor calculations:
The 4 Band Resistor Color Code Calculator is designed for efficiency and reliability:
Follow these simple steps to use the 4 Band Resistor Color Code Calculator:
Choose the color of the first band, which represents the first significant digit of the resistance value.
Pick the color for the second band, which represents the second significant digit of the resistance value.
Choose the color for the multiplier band, which determines the factor by which the significant digits are multiplied.
Select the tolerance band color to see the accuracy range of the resistor.
Enhance your understanding of resistor color codes with these resources:
Ready to calculate resistor values effortlessly? Use our Online 4 Band Resistor Color Code Calculator today and get instant results!
A 4 Band Resistor Color Code Calculator is a tool that helps you identify the resistance value of a resistor based on its color bands. By inputting the colors, it quickly calculates the resistance value in ohms, including tolerance, to ensure accurate measurements for your circuits.
To use the calculator, select the colors of each band from the dropdown options or color palette. The calculator will instantly display the resistor's value, tolerance, and, if applicable, temperature coefficient.
The four color bands on a resistor represent specific values: the first two bands denote the significant digits, the third band is the multiplier, and the fourth band indicates the tolerance of the resistor.
This calculator is specifically designed for 4-band resistors. However, similar calculators are available for 5-band and 6-band resistors, which use additional color bands for greater precision.
Tolerance indicates the range within which the actual resistance value may vary. Knowing the tolerance helps in designing circuits where precise resistance values are required, ensuring that the resistor performs as expected.
The calculator is highly accurate based on standard resistor color codes. However, actual resistor values may vary slightly due to manufacturing tolerances, so always verify critical resistors with a multimeter when precision is essential.
This tool is designed for online use and does not store data. For offline use, consider downloading a resistor color code chart or using an electronic calculator app that supports offline functionality.