Four or Five Band Resistor Color Code Calculator

What is a Resistor Color Code?

Resistor color codes are a standardized method used to indicate the resistance value and tolerance of resistors. The color bands on a resistor provide this information in a compact and easily readable format.

How to Read Resistor Color Codes

For a 4-band resistor:

• 1st and 2nd bands represent the first two significant digits
• 3rd band is the multiplier
• 4th band indicates the tolerance

For a 5-band resistor:

• 1st, 2nd, and 3rd bands represent the first three significant digits
• 4th band is the multiplier
• 5th band indicates the tolerance

Color Code Chart