Resistor Colour Coding Calculator
You can quickly determine an element's resistance using the user-friendly Resistor Color Code Calculator. To receive the resistance and tolerance value in a fraction of a second, simply pick the number of bands in the resistance and band colours from left to right.
Resistor Color Code Calculator: Is it difficult to determine a resistor's resistance value? This free Resistor Color Code Calculator does all of the work for you and calculates the final resistance value in a matter of seconds. Learn how to read a resistor's resistance, how to read a resistor's colour code table, how to read a resistor's 4 band colour code, and more. Get the answers to the solved example questions on the resistor colour code scheme.
How to Read Resistor Color Code?
Below provided are the simple steps to read color code of 4 band resistor, 5 band resistor and 6 band resistors.
- First of all, identify all the colors on the resistors from left to right and the last one is the tolerance.
- Use the color code chart and represent digits for them.
- The band before the tolerance is the multiplier band.
- Write thode values in an order to get the resistance.
Resistor Color Code System
Color bands on a resistor represent its value. The resistor is the smallest device used in an electronic circuit. The color code on each resistor has a value. In general color codes are 4 band resistor color code, 5 band resistor color code and 6 band resistor color code.
The last color code is called the tolerance and the last but one is called the multiplier and the remaining are called digits in the system.
Get the digit, multiplier and tolerance value of each color code in the following sections.
| Color Name | Digit | Multiplier | Tolerance |
|---|---|---|---|
| Black | 0 | 1Ω | |
| Brown | 1 | 10Ω | ±1% |
| Red | 2 | 100Ω | ±2% |
| Orange | 3 | 1kΩ | |
| Yellow | 4 | 10kΩ | |
| Green | 5 | 100kΩ | ±0.5% |
| Blue | 6 | 1MΩ | ±0.25% |
| Violet | 7 | 10MΩ | ±0.1% |
| Gray | 8 | 100MΩ | ±0.05% |
| White | 9 | 1GΩ | |
| Gold | 0.1Ω | ±5% | |
| Silver | 0.01Ω | ±10% |
Resistor Color Code Formulas
4 Band Resistor Color Code
The 4 band resistor color code has 2 digits, 1 multiplier and 1 tolerance.
The formula to compute the resistance of 4 band resistor is
R = multiplier x [(digit1 x 10) + digit2] ± tolerance
5 Band Resistor Color Code
The 5 band resistor color code has 3 digits, 1 multiplier and 1 tolerance at the end.
The formula to find the resistance of 5 band system is
R = multiplier x [(digit1 x 100) + (digit 2 x 10) + digit3] ± tolerance
6 Band Resistor Color Code
It has 6 colors. It is the same as the 5 band resistor but it has a temperature coefficient. The last one is the temperature coefficient.
Example
Question: Find the resistance of the resistor having the color sequence red, green, blue, gold?
Solution:
The given color sequence is red, green, blue, gold.
As the resistor has 4 colors, it is a 4 band resistor
The first two digits are red, green, multiplier is blue and tolerance is gold.
The values of color codes are
red = 2
green = 5
blue = 1MΩ
gold = ±5%
So, the value of resistance is 25MΩ ±5%
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Frequently Asked Questions on Resistor Color Code Calculator
1. What is the resistor Color code and what is it used for?
The resistors are commonly used in electronic circuits. The resistor color code is used to know the value of resistance of the resistors. One has to read the color code on the resistor from the left to the right side. Resistors can have 3, 4, 5 or 6 color bands printed on them.
2. What is the 10k resistor color code?
The 4 band 10k resistor color code is along the lines:
The first band is brown means 1, the second band is black means 0 and the third band is orange and tolerance can have any color.
3. How to identify a resistor's color?
We can identify the color code on axial resistors. Read the color band from left to right on the resistor, the last color indicates the tolerance. Use the formula to calculate the resistance value on the resistor.
4. What do the colors on a resistor mean?
Generally, resistors have four stripes of color. The first three stripes color represents the resistance value and the fourth strip means the tolerance.
Color-Coded Resistor System
A resistor's value is represented by its colour bands. In an electronic circuit, the resistor is the smallest component. Each resistor's colour code has a numerical value. 4 band resistor colour code, 5 band resistor colour code, and 6 band resistor colour code are the most common colour codes.
The tolerance is the final colour code, the multiplier is the last but one, and the remaining digits in the system are termed digits. In the sections below, find the digit, multiplier, and tolerance value for each colour code.
Resistor Color Code Chart
| Color Name | Digit | Multiplier | Tolerance |
|---|---|---|---|
| Black | 0 | 1Ω | |
| Brown | 1 | 10Ω | ±1% |
| Red | 2 | 100Ω | ±2% |
| Orange | 3 | 1kΩ | |
| Yellow | 4 | 10kΩ | |
| Green | 5 | 100kΩ | ±0.5% |
| Blue | 6 | 1MΩ | ±0.25% |
| Violet | 7 | 10MΩ | ±0.1% |
| Gray | 8 | 100MΩ | ±0.05% |
| White | 9 | 1GΩ | |
| Gold | 0.1Ω | ±5% | |
| Silver | 0.01Ω | ±10% |
How to Interpret the Color Code of a Resistor?
The stages of reading the colour coding of a four-band resistor, a five-band resistor, and a six-band resistor are outlined below.
- Step 1: To begin, identify all of the colours on the resistors from left to right, with the tolerance being the final.
- Step 2: Use the colour-coded chart to represent the digits.
- Step 3: The multiplier band comes before the tolerance band.
- Step 4: To calculate the resistance, arrange the code values in the correct sequence.
Resistor Color Coding Formulas
4 Band Resistor Color Code: The colour coding for a four-band resistor has two digits, one multiplier, and one tolerance. The formula for calculating the resistance of a four-band resistor is as follows R = multiplier x [(digit1 x 10) + digit2] ± tolerance
5 Band Resistor Color Code: The colour coding for a 5 band resistor has three numbers, one multiplier, and one tolerance at the end. The formula for calculating the resistance of a five-band system is as follows R = multiplier x [(digit1 x 100) + (digit2 x 10) + digit3] ± tolerance
6 Band Resistor Color Code: It comes in six different hues. It's similar to a five-band resistor, but it has a temperature coefficient. The temperature coefficient is the last one.
Resistor Colour Coding Questions and Answers
Question 1: Find the resistance of a resistor with the following colour sequence: orange, pink, blue, gold.
Solution:
Orange, pink, blue, and gold are the colours in the provided order. The resistor is a four-band resistor because it has four colours. Orange and pink are the first two digits, the multiplier is blue, and tolerance is gold.
Colour codes have different values.
orange = 2
pink = 5
blue = 1MΩ
gold = ±5%
So, the value of resistance is 25MΩ ±5%
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FAQs on Color Coding of Resistor Calculator
1. A 100K resistor is what colour?
Brown, Black, Yellow, and Golden are the colour codes for 100K Ohm resistors.
2. What is the best way to locate a resistor?
You add up the individual resistances to get the total overall resistance of a group of resistors connected this way. This is accomplished by applying the following formula: Rtotal = R1 + R2 + R3 + R4 + R5 + R6 + R7, and so on. Calculate the total resistance of these three resistors in series as an example.
3. A 330-ohm resistor is what colour?
Carbon Film Resistor (CFR) has a tolerance of 5% at 330 Ohms and 0.25 Watts. Resistor with a resistance of 330 ohms Orange, Orange, Brown, Golden is the colour code.
4. What does a 1k resistor mean?
A resistor is a device that reduces (or resists) the passage of current. The value of a 1k resistor is 1,000 ohms, and the number code is 1,000.
5. What are colour codes?
A colour code is a method of showing data using various colours. Long-distance communication using flags, such as semaphore communication, is one of the oldest examples of colour codes in use.