Resistor Colour Code Calculator

Understanding 4 and 5 Band Resistor Colour Codes

Resistor colour codes are essential for electronics enthusiasts and professionals, allowing quick identification of resistance values, tolerance, and reliability of resistors. The colour bands on resistors provide an easy-to-read method for determining these characteristics.

4 Band Resistor Colour Code:

1. First Band: Indicates the first significant digit of the resistor’s value.
2. Second Band: Represents the second significant digit.
3. Third Band: Acts as the multiplier, showing how many zeros to add.
4. Fourth Band: Indicates the tolerance, showing the possible variation from the stated value.

For example, a 4-band resistor with red, violet, yellow, and gold bands translates to a resistance value of 270k ohms with a ±5% tolerance.

5 Band Resistor Colour Code:

1. First Band: Represents the first significant digit.
2. Second Band: Indicates the second significant digit.
3. Third Band: Shows the third significant digit for more precise values.
4. Fourth Band: Acts as the multiplier.
5. Fifth Band: Represents the tolerance.

For instance, a 5-band resistor with brown, black, black, red, and brown bands translates to a resistance value of 10k ohms with a ±1% tolerance.

Understanding these colour codes is crucial for anyone working with electronic circuits to ensure the correct resistors are used, maintaining circuit integrity and functionality. Our Resistor Colour Code Calculator simplifies decoding these values accurately and efficiently.